I can definitely see improvement.
I really do love your style.
I want to do one of these....but I haven't had too much free-time since I started school.....and that's been awhile.*sigh* So I'd have huge gaps of not drawing anything, but stuff for school....and I hate to say it I never like anything that I do for school. Maybe it's because I only have a week to do my projects most of the time. That might be it.
Oh well keep up the awesome work!!!