Going to be honest - I saw this over at cdtalk aswell but thought I address this here as it`s a much friendlier place.

For me your project is a little all over the place. You have cartoon characters looking life like but then render just their cloths toon shaded. Its not working for me at all.

The joker is the best looking at the moment but I think its because there is no toon shading. The models of the bikes and backgrounds look really good but the characters need some work. Kananda looks 6/7 years too young, he`s 16 in the comic books, but your face looks like he`s about 9.

You have the skill - looking at Tetuso mutated hand pic and your current joker - you can model characters as well as hard surface objects like the bike, just more time is need on the characters.

I think this will end up looking really good

Sorry if it sounds a little harsh (Feeling a little mean typing this, but I think it needs to be said)