One of the things about drawing people, is that it seems like they have so many details. I'm not really sure, but it seems as if you drew this on small paper (like sketchpad paper, for example)...Try drawing people on big peices of paper or canvas =) That way, you won't have to worry about making everything fit. Drawing/painting 'bigger' also helps express the feelings and emotions of the artist (through big hand strokes, ect.) Try that, and you'll improve tremendously! I still like what you have done tho =) Looks great, keep it up!