I just have a couple of suggestions............... First of all, any website with a white background is very hard on the eyes, especially at the end of a long day (which may be when most of your customers are logging on). This may be a personal thing with me, but I am fairly sure that at least some people would appreciate something that doesn't have such a harsh "glow".
And second, on my monitor (which is 17", although I don't know if that makes a diff) the site was wider than the screen width. It may be just a personal pet peeve of mine (as may be the first suggestion as well), but I don't like to have to keep scrolling back and forth to see the whole picture, or something that is hidden on either side. Hope you don't mind my bluntness, just an opinion, so you must take it for what it is worth!! 8)
Della