What do you want me to crit again question .
Your characters are extremely style-ized, and you give them poses, which creats characters of interest. Which is good.
I would suggest studieing/studying/[I can't spell studying] buildings, trees, etc. You know- inanimate objects. I noticed your backgrounds are weak compared to your strong characters.
If you wan't to challenge your self more, [I tell people this all the time] go take a drawing class, than proceed to figure drawing sessions, and from there go on to painting. Learning to draw semi realistically will drastically improve your art.
Overall your art is awesome. cool