Xeno said:
Mind if I ask what you use to draw?

From what I see, both styles are cute as hell. However, the last piece posted is, personally, the better of the two styles.

What I'd say, though, is to make your lines thinner in your usual style ( if it's possible, I know using mouses / normal tablets are difficult to do that with ! ). If you can't make them thinner, don't worry. I honestly think you've improved so much already, and I can't wait to see how you progress with your art :D