Looks good.

Only two small suggestions…

1. Consider making the category images slightly smaller so that they fit 3 on a line, or possibly larger so that they fit two on a line much more symmetrically.

2. I'd also consider adding a "Store" link within your store, somewhere close to your existing "Home" link. When I click "Home", I expected to go back to the main "Store" page. Although, I know exactly why you did it — because you wanted the visitor to have a way back to your MAIN website. That's good, and I understand why, and you should keep that. But, you should probably also have a way for a visitor deeper within your store, to get back to the top main page of the store. Adding a "Store Home" link would solve that.

Other than those minor suggestions, I think everything looks great!