Oh boy, I really hope this doesn't actually look like you. In that case I'd be too intimidated to comment. But, a challenge a day keeps boredom away. So, a blank canvas can be interesting, if what ís drawn is so good that it balances it out/compliments it. The head is a bit big in proportion to the body and whatever you do, avoid the fill tool. It leaves nasty white bits. It is better to make use of the layers. That allows you make a clean drawing.

.. not really interested.

Julius, please start on begginers to learn the tools before making your way up to intermediate. And joy's right, instead of the fill tool use layers to set your colors, it's easier and cleaner.