Little rider

I revamped a old sketch from like, Last march or something like that, maybe longer, its old, that much I know. So i get my colored pencils out, and I just start doing stuff to the Picture, it started out with just the girls outline,a dn Turned into this. Think about it this way, When i first drew her, she was supposed to be a school girl, Japan Style, hanging from a train door, like getting ready to jump, But meh, too complicated, it still isn't done, as you can tell by the pencil line in the background, I still have no idea what to put for a background, So yea, Any suggestions would be nice.

I am still very proud of it and Have it as the background on my phone^^

Media used
Colored pencils
Vine Charcoal
Fine tip and fat tip sharpie
Sepia Charcoal