South Park Kids Sketch

My interpretation of the kids from South Park in a more realistic, yet still slightly cartoonish style.

This is the first sketch I've drawn since high school art classes, which is a couple of years ago! Besides the page being a bit messy, I think it turned out alright for a rough sketch. Tell me what you guys think!

PS: I might fix it up in photoshop and color it in the near future. Though if anyone else wants to color it, feel free.