Sweet, not bad! I liked the two kick combo at the beginning of the first one, and your general feel for movement. One fix that would instantly improve your animations though is stick construction and wobbliness (both are tied together).
I can see that your sticks tend to keep an inconsistant size or length of limbs. I also saw a lot of curving around joints and bended arms or limbs. I know its hard to draw if you have a mouse, and even if you have a tablet. Practice and time should naturally improve this. Really try to use the onion skin and draw over previous stick figure's as best as you can. Doing so will fix inconsistant sticks, as well as wobbliness.
You're potential is looking great though, and I've got a feeling you'll be improving in no time. Keep at it, and hope to see more soon!
Also, welcome to the SP community, hope you'll like it here!