Hi and welcome...very nice start to your store, I'm sure you'll be successful, you have some great designs.
Couple of things I picked up on though, you'll need to remove any references in your designs, titles, tags and descriptions to trademarks. (ie mini vespa etc) With auto products even using a shape of a vehicle that is recognizable such as a mini would leave you wide open to being sued; also there is the likelyhood that Zazzle would not print the design.
The other thing I would personally remove is the note in your header to click on a country at the bottom of the page...these links drag your customer away to the Zazzle homepage for that country, not that countries version of your store.
Hope these couple of tips help you to get off on the right foot.
Good Luck
