Looks good! In case you didn't know, you can disable categories that are empty.
Your pictures look a bit blurry to me, My wife uses a sheet of paper behind her smaller products to soften shadows and make the product stand out more.
Changing the color of the bag and tabs would look nice. I had no idea how to change the CSS theme when I started, but I got the hang of it
Be prepared, tweaking the code in ECWID can get pretty addicting.
I really like your logo and your color scheme. your site is easy to navigate,