OK, first impression, the buttons on the home page are too far apart, that's a lot of empty space between them, and I am lazy as are most other people online.
Secondly, you're photos are terrible. I shoot products for a few online retailers as well as for Bridgestone Golf UK and if I handed over those shots I'd never get any repeat custom.
Depth of field is too small.
Too many photos of the product.
what color background do you want on them, I see anything from white to grey.
You need a couple of photos showing the entire product then, if you want more, a few close ups of the details.
reflections in the lenses are distracting, especially from the front
If you need advice etc, feel free to email me via trust.