It's good, though try and work on your shadowing; it looks a little flat at the moment, some more focus and time spend on the shadows might reduce that in future drawings! The flag is well done, nice thin and soft lines make it feel like a flag.
I agree with Fahz entirely. Shading is key to make a good piece of work great.
I would add though... work on hands. I personally have always had the hardest time with them, but apparently there are people out there who can do hands... its so crazy!