I also can't draw very well, but a few months ago I could hardly draw at all. My point is even though it seems like your drawings are crap or you're not getting any better, if you stick at it and draw every day in a month or two you'll look back on this image and think it was done by someone else.

btw, what do you think of these and how could i improve on them:

image 1
image 2
image 3