@ Kamillo
You should post only original size images, you can zoom in by clicking on them.

I don't like your new bully dog(or pig), he have punk rock outfit which don't mach with the rest of your characters, also his face is bad, it's hard to read.
Rabbits face while he's being captured is very good.

Give us some details, about characters. Who are they, what is their purpose etc. I have a feeling that you don't have precise idea yet, so you create random characters. You should plan out at least first stage of your game (demo stage) and start to make character by character, object by object...