I also like a lot the other Superku video (don't know if it is same game ??) :
Superku vid 2

For your character model, it's alreday original and great like that ! Caus it is little on screen, no need to change it i think personnaly !

(If you would want some cartoon characters and have concepts i'll be able to help you next month if you need !)

Just do It !!

http://independentcreator.over-blog.com/pages/3D_Models-7792999.html