Yeah, these are gorgeous. I love the little details you added with the clothes and hair. So smooth and convincing! For the first one, she spins around a bit too fast to end in that kind of pose, in my opinion. It feels like she should be falling over with that kind of momentum and that kind of off-balance stance at the end. I love the little *poof!* air animation at the end, though! I can feel her firing her projectile off already!
For the last animation, the way she twists to her left before coming back straight down doesn't feel as convincing to me as the other animations. It's a huge sword, but I don't feel like there's too much weight behind it.
That said, this artwork is beautiful. It really looks better than a lot of professional work I've seen. Welcome to the forum! =)