Hey robin :3
That's a very introspective question isn't it? Toughie...I don't normally think about what I like of my own stuff, as opposed to what I dislike about it. (Like most people I guess)
I guess...I'm quite happy with how I've progressed with color. I still consider myself a beginner, so I tend to be pleasantly surprised with how people receive my paintings. Like half the time I have no clue wtf im doing, but it turns out alright. That's a good feeling :)
Also whenever I experiment with something, I think my best work is the pieces where I thought "what if I try this wacky thing" or explored some concept I hadn't before. The wacky thing is sometimes "use a different brush lol" but yeah.