Islamic mosaics & geometric patterns

When I'm thinking about looks of my blocks I have in my mind lots of geometric figures in crazy colours. I might use just patterns made of basic shapes. These are looking amazing (found on http://en.wikipedia.org/wiki/List_of_uniform_tilings):

Obviously I am strongly influenced by Islamic art, they have used geometry to its limits and it's just not possible to make anything better:

There is also big tradition of mosaics in Ancient Greece, but they seem bleak to me:

When it comes to crazy coulours and anthropomorphic shapes it's good to look at Native American Totems:

And South American Indians - Aztecs and Mayans: