If you'll allow me to be frank, I find the animations very stiff. I like the sprites, but I don't like how they're animated – usually, only one body part is animated, in a "puppet" style. It's something I've noticed in all the animations in all your projects.
When you're animating, you can't just move one limb; you need to give the body some movement by moving the rest of the parts.
Look at this example, from an animation I made: even though I only move the arms up and down, I move the legs too, to gain more fluidity.
In this case, I altered his legs to give them even more fluidity.
That tool can help you do the basics of animation, and you can fix and draw over it. It's not a way to cheat; it's a tool.
I used this tool + manual drawing combo here, for example.