Scott - I'm not a photographer so I can't critique anything, but I do like so,e of your pictures. If I was able to produce pictures like that I would be very happy.
What I do know about is business, marketing, sales etc. Much more boring than photography, but if I may I'd like to offer you a few comments about your website.
Firstly on a decent iPad with a decent broadband connection (not the best, not the fastest but very average) your site lags when changing images and loading pages.
From the home page I liked clicking the links to the areas of photography at the bottom of the screen. Really think about the words, they can help sell the picture. Then have a price next to it. I'd have maybe two sizes it's available in, and somewhere on the site you can explain that pictures can be produced in other sizes on request. Cut down on the options, don't go for small budget pictures, you choose the size they are available in.
Then I was surprised at the bottom of the page I couldn't go to the next area of pictures. I have to pick a menu item or back out of the page. I would change that. The menu is nice, it shows the area you are currently in and where else you can go, and I like there being just 6 areas. I'd be tempted to drop the 'other images' section though. You are a landscape photographer, right? If so you don't need a macro image of a flower, as nice as it is there is no story wih that and hey can be obtained from many places.
You've probably sat and thought "I really must update the news section on my website" but didn't know what to add, and then as time moves on it gets harder to add something. News sections are rarely a good idea unless they are regularly updated and going to be read. You have a profil page, you can keep that updated (you move around the country now and then, and you travel so you could put little updates about that in there. But the 'news page' just clutters the site.
You have a seperate page to the gallery & store. Surely your website is the gallery and the whole gallery is the store? Don't make people click 'store' - it means 'money', they should be admiring your work because they've gone to the link and when the see a picture they like they see a very reasonable price tag under it. Not a range of prices, your square and standard size pictures have 42 different size and print options, panoramic has 28 options, and that's before we consider the 8 paper types, mounts and more. That is just too much to choose. I think the slightly scary part is that's what you see when you click 'gallery & store', people would read all that before they get to see your wonderful pictures.
I know it may be a challenge to reduce all that to 1 or 2 options, but in my humble opinion I would suggest as the artist you should make the decision. If I go into an art gallery to buy a painting if I asked the artist to paint it again on different paper or a bit smaller I'm pretty sure I'd be asked to leave - unless they were desperate for the money I guess! You are the artist, you decide what to photograph, you edit the picture, you print it and mount it. It's your product, I want to buy your finished art work, I don't want to have to decide what paper you should print it on or how big it should be. Sorry if that sounds rude, but I believe that to be the right way to run an online gallery.
Others may have a ton of success offering so many options, I may well be wrong, but from experience simplicity works, offering a few easy choices is best - medium or large, gloss or matt... People often don't know what they want, and with artwork I'd suggest that is often very likely. People will know they want to buy your picture, but that's about it, if they have a load of choices and don't know which is best I'm confident many would just forget it. In a bricks and mortar shop they may ask the sales advisor, I doubt many would email to ask you though. It might be interesting to have different pictures at slightly different prices, depending on how long it took you to produce it and how far round the world or up a mountain you had to hike. Or it may be easier to have just a couple of prices across the range. I'd be tempted to try selling some images as just available in one size, if you have a subtle note so,ethereal saying 'other sizes are available - just ask' you cover all bases.
So if it was me I'd drop the 'gallery & store' and make the whole site the gallery where every image is for sale (no store as such). The other thing about the gallery & store is I really didn't like all the thumbnail images. I really liked to see the large images, and I liked being able to read about them, then suddenly the site took a sharp turn in a different direction when I wanted to see what was for sale. I also noticed many images had a similar image next to them, just slightly different. You choose. It's your picture, which looks best? At that point taking away the similar images you'd reduce the numbers a little, I'd hen cull further taking away pictures that are from a different location but similar, so you end up with a smaller portfolio of really lovely images that you are proud of. You could always have a link to 'further work' that takes me to another gallery with all the pics you've just removed, not thumbnails hopefully, maybe 4, 6 or 8 to a page, easy to navigate.
If each of the pictures you have left has some text about it and is displayed in the relevant section with a price I think the site would look a lot more professional - a gallery. You will have lost 2 links but maybe added another for 'further work'. I'd make the 'contact' button seperate, move it out of the menu, it should be on each page and easy to find still, but you will have a clear clean menu of things people want to click.
Personally I'd work on the 'profile' page, take out all the technical stuff about 'raw' and what camera you use. Sell yourself. Write more about your photos - how long it takes you to find the perfect shot and how you go about it, your travels - where do you want to go next, if people realise these are not just snaps someone has taken on a hike and actually there is a lot of planning, thought and effort plus a lot of work once you get back you give the picture some value.
Be more selective about which picture is displayed where. Change them with the seasons - there is a winter image when the site first loads, as far as I'm aware it's summer. Dare I ask how long that image has been on there loading first? Plan when you will change the images, there is nothing wrong with the same image loading each time but it should be replaced fairly frequently.
It's really important to constantly work on the site. High end stores on the high street will be changing their window displays monthly, if not more often, they will be checking on them daily, it is their advert, the first thing people see. Change yours with the seasons, but have several for each season so they change every few weeks or so. Is is why the news section of the site doesn't work. If you were using it to show off your latest picture and the story behind it that would be great, as long as it was updated monthly. Once the news hasn't been updated for a month it starts to look like the site isn't cared for. There is a trick to this. Get your 'news' for the next few months ready, spend a little while getting it all set, then publish the items on a select date. If your site software allows scheduling you may well find you can set it all up,so every few weeks a new item is published in the news. I wouldn't call it 'news' but it would be an interesting addition to the site.
Sorry for all the words, feel free to ignore everything I said, I just thought I'd give a few pointers from a different perspective. I can't help you with the way you take and edit your pictures - I'll leave that to the photographers!