C&C on my first ever sketch!!!

[Yajirobe]

Alright, so im in math class and i start to think about the turnover. I think "Hmmm, who should i switch to?? Or should i make a custom??" As i thought, my mind was browsing around characters in dbz and i finally made a selection.

Panbukin. He was my selection. But then i thought that i didnt want to go from one fat character to another, so i sketched a pic of skinny Bukin. So i need some C&C. Also please note that this is the first attempt at drawing anything serious in my 13 years of living.

{[And also, sorry for the chitty quality. It was drawn on the back of a math ditto. O and i couldnt colour it cuz i couldnt find any colored pencils >.>]}