/ic/ - Artwork/Critique

Sorry for this mess of lines but can I get some help, directions, advice, red lines, or whatever with this? I'm trying to draw a little girl putting on a bandage. I can't figure out the left arm; I want it to be sort of angled 45 degrees toward the viewer, with part of the elbow pointing towards you. I can't seem to do that without making the upper arm look short, though. I wonder if it'll look better once I put clothes on her. Also, I'm not sure how big the head should be for appropriate anime size. If you spot anything (or everything) else wrong, please point it out. I'll take anything even if it's not specific to what I asked.