very good piece! the hair is shaded particularly well. the lens flare is used well but perhaps avoid the body so it have a greater impact. just a suggestion, maybe you could try putting some very faint lines in the background to represent bars? keep up the good work!
aaaahahahahahaha! you drew this on the back of your test!?!?!! ^^ glad you got it back this is awesome really like the position here and the stripy scarf thing, i would say more right now about your art but my brain's malfunctioning >< o00)))