When I first saw the name of your site I thought, what a clever name for a woodworking store. Then I looked at it and noticed you sell jewelry? I see there are wood shelves, so that kind of ties in, but the name just didn't seem to fit the content to me. Anyway, on to the layout. The site looks fairly basic. I think the navigation and content management should be worked on to make it easier to use. Your top header is quite large and doesn't have any content except your logo, a sale notice and a corner graphic which is just there for appearance. You want the important stuff (the content, your products) up higher since that is your focus. Also, from my experience with e-commerce sites, the search function should be toward the top. A lot of people know what they're looking for and want to find it fast. The center content needs better organization. Text is all over, in different colors, some in bordered tables, some centered, some justified. Work on making it uniform and smooth. Right now it doesn't look very professional, and when selling jewelry, that is something that you need to exude.
also - i'd think twice about the table borders. try to find a way to present your material that lets you avoid them altogether, if possible - and if they must be used, make them less blatant. i believe this can be done via stylesheets, or you could do it like so:
obviously, you'll need to customize the table dimensions. i've found this to give a much cleaner look.
one last word - try to avoid the multi-colored text everywhere. some red text is linked, some isn't - kind of confusing.
ETA: a book i've found useful when considering design aspects is "web pages that suck" and "son of web pages that suck." (no, i'm not the author ) it's saved me from making a lot of mistakes that you wouldn't normally think about. good luck!