Rainbow Dress

Something I did a little less than a month ago. My original intention was anatomy practice...but it turned into something else...
Yeah, yeah, I know, it's not wonderful. But, I'm learning. The thing that bothers me the most is the hair.
My tools were watercolor pencils and _{an office} pen. _{I'm so professional /sarcasm/}

PLEASE feel free to give me any constructive criticism.

And speaking of rainbows...