First the jump.
It has a nice feel to it!
I wouldn't go as far back as x3. Looking at that frame alone he'd fall backwards. If one of his feet was back there to push him forward again, then no problem. But as of now, it's a bit too far.
When he lunges forward, I would bring out his right leg earlier and stretch it forward a bit more, so that it's part of the jump. If you look at x10 to 17 for instance, the right leg is pretty much the same, save some rotation. But if you're not using it to lead the jump, then you might as well just do a regular jump with the body leading the action.
Overall though I feel that the arc is a bit flat. It feels like he's floating a bit to the right. If you bring him up higher than I can buy the distance. Unless he really leans forward.
The stop is a bit abrupt on x32, he swings back pretty fast and then stops. Especially given the distance, I would actually have him bounce a little bit further to the right with a little step.
Hahaha! The sneak is coming along very nicely! Little things:
- I would slow down how quickly the foot rotates up from x21 go x25 (and subsequent steps).
- the footroll is a bit early. You have it start right when the foot plants, like on x5. I'd actually have it go down up to x21 because he's applying pressure onto the foot in order to get up. Then, as he's moving the leg forward he's really trying to reach forward, so his back foot will roll up during that time.
- The side to side move (front view) could happen 3 or 4 frames earlier and end later. Right now it's a tad fast, which makes it a bit weird when he goes to the right and then stops so quickly. He's sneaking, on his toes, so he won't have that much muscle power to quickly stop his body. So I would soften that part a bit.
Little things! Almost done!!!