The two old ones:
Top one-
Wasn't bad, just it looked like the blue guy had a boner. The effects (his teleporting) kinda sucked, work on that. Also work on your blood, Zoom in and use a smaller brush. Then shade it in a little with a darker shade of red.
Bottom one-
That walking was horrible. He looked like he skipped, flew 2 ft forward, then some how tripped on the rock from 5 ft away. Also blood work on get.
New one:
Add a little more easing towards the end, nice force though.