I've got to agree with Patrick. I looked at your site yesterday before anyone else had posted and thought the pictures were excellent, beyond anything I feel I could produce. However, the website colour scheme is doing them no justice whatsoever. Lose the coloured buttons and settle on one colour. The "etched" arrow keys for navigation look a bit cheesy. Get rid of the leaf(?) patterned background and choose a muted colour, dark grey is a safe bet although whatever suits your taste. As you are selling your prints the effect is of knocking out say Hasselblads in a Walmart "reduced to clear section".
This is just my opinion, and the suggestions are made with respect. before re-desigining my site I spent a lot of time looking at what my contemporaries did, figured out what I liked and didn't like and went from there. It is easy to fall into producing a generic website by doing that, but like wise individualism shoud be hinted at, not shoved down the throat.
All the best, Lol