Well, it looks good, but the lack of facial expressions is a problem.
Also, it is useful for animations, but this limitation ("if body size change i need to make adjustments on clothing like in real life") on the contrary complicates pictures creation. After all, you cannot use animated pics everywhere, at very least portraits and profile pictures don't need animations. Or, rather, they could be animated too, but it would require insane amount of rendering to be done properly.
Xela, how about adding an experience field to mobs which determines base exp reward for killing the mob inside SE/arena? The resulting exp could be something like base exp + mob level*5.