Its amazing how different people see in their image the thumbs. I did a graphics course at college once along time ago, and we had to make a A3 sized mood board. With this board we had to cover it with torn/cut pictures each overlapping and when finished it looked like a mosaic without the edges!, then cover different areas with two 'L' shaped cards and see within that area when these L pieces where layed over and joined together making different sized squares/oblongs. It was fascinating seeing different images from within. I see these thumbs are basically the same thing as these 'L' pieces but with one complete image underneath and also depends how good the image is to start off with. Thanks for all your input. I'm still learning a lot!

Smile, your dead a long time :)