Initial thoughts were that you were an IT site, not a photographer/journalist.
You've got a home and welcome link that both take you to the main index page. Personally, i'd lose the welcome tab.
I'd also look at removing the right column competely from all but the blog page, viewers don't need to see the blog archive when viewing your gallery.
On the main page you have the SB/MG logo, remove it. If you want to use look at incorporating it in to your header. Talking about your header, make the SkyBlue Freelance bigger and the line underneath smaller.
Remove the calendar completely unless you really have a need for it, same with the admin section. Of course, this will only effect the blog page

The blog page has lots of different sized fonts, you need to standardise this.
Is this a business site or a personal site? If its personal, you ABOUT ME page is fine. If its business, it needs a total rewrite. Potential clients don't need to know that you struggle with maths.
Contact me page: make your email a clickable link.
I'd turn off comments for most of the things on your site apart from the blog.
For the gallery, I'd put all the MG TF GT photos on to one page and see if you set the images to load larger when you first click on them, saves having to click on the twice. This will be easier without the right column
I know it all sounds harsh but internet users are on the whole, fickle creatures who will rather press the back button than try and persevere with a site.
If you need help with anything ask, i've got a little bit of experience myself and will help if I can