well, its not bad for the first website, but I can say that navigation could be improved somewhat. If you break down the content into two main areas: 3d and 2d, it would be easier to undestand. And...

Hi,
I was working on this head for a while, but cant give it a proper look. Can you, please, look and tell me how to improve it?
Thanks in advance!

Here are the views:

...

Actually the weel doesnt seem very strong and powerful. I figure it should be more "tough"

How did you make the tires?