That's good, but the ALT tag doesn't describe what the image link goes to. The ALT tag describes the image. Use the ALT tag to describe the link. Have the little yellow tool tip state that this cat tray image will take you to the cat lover's page.
Navigation is the second most important thing to a page, right behind content.
I am a fan of blatant, almost simplistic navigation. If I have to guess or infer at all, I'll probably miss what the author is trying to say. If I like something I see on the home page, and I click on it, I may or may not get to a page that has the item. The moon box is one example. That link took me to a page full of items, but no moon box.