I agree with what others said here on the design - I like.
You might consider purchasing instead of using the free version of wix - I think a paid version doesn't run through the little wix intro at the beginning.
I always look at the code behind a site, so here's a little info:
If you run your site URL through
http://validator.w3.org/ there are a lot of errors in the code (114). Of these one is the DOCTYPE, which is very important. Others are MIME Media Type, XML declaration, and XML namespace. The validator gives you help on how to fix these issues.
In the <title></title> tags, you should have your business name and maybe tagline there, not "Wix.com - Website built by..."
Just me, but I am not a big fan of tables for layout, because these effect how search engines react to your site.
Don't be discouraged by my comments here (my site has validation errors, too, that I will fix before going "live") - I really like the design you chose! You're on your way to a very nice site!