Also this image has a severe case of "profilitis". Why is everything from profile or directly from the back? It's bit too convenient in terms of simplifying the image.
I don't think at this point of your skill you're able to improve significantly in just couple days and I have a feeling that any drawing you might post here now would just get the same critiques over and over because they all will be sharing the exact same fundamental flaws (form, proportion, anatomy, construction, perspective, etc etc etc) and you'd hear the same advice over and over again.
Get those Loomis books I linked you (this would be a good one if you only buy one http://www.amazon.com/Figure-Drawing...l+it%27s+worth), read and study them well and spend like... a month for starters practicing by drawing from those books and simple objects from real life (and I mean REAL life, like your alarm clock, cardboard boxes, yourself from mirror, mugs, plates and so on) daily. Create a Sketchbook: http://conceptart.org/forums/forumdisplay.php?f=41 and post your studies there.