These sort of header bars (which remain at the top of the page regardless of scrolling) mildly irritate me because I don't scroll down web pages as I read, I 'page down'. Paging down does not take these headers' size into account so consequently I miss some text which becomes 'hidden' behind the bar forcing me to grab the mouse and scroll back a bit every time.
Your header bar, as others have commented, is quite large and I 'lose' entire paragraphs!
If the content is engaging I'll begrudgingly fiddle around to read, otherwise I'll simply close the page and go elsewhere.
I'm probably in a tiny minority, but I thought I'd pass my thoughts along.
Otherwise, the page was nice and clean. I wish the article had less (or none) of the technical babble because for simple shots like these those the details are irrelevant.
Nit-picking: watch your spacing of text, sometimes it runs onto a picture with no space, sometimes the picture has a caption with too much empty space, then there's a large bit of empty space before the tags at the bottom of the page. I only saw the footer after looking at the page a couple of times (to check my initial impressions were vaguely accurate) and came across it by accident. The text on your home page is way too large. You may want to consider setting your 'Buy Online' link to open in a new page rather than navigating away from your site.
So generally I like it, it's clean and simple (a good thing!) but for me the header is too distracting and you need a little more attention to the small details.
Good stuff. Thank you.