I haven't fixed all of the problems I've found in the first version (the inconsistent torso volume being the most obvious). The arms are more than just a rough indication of movement now. I've switched the leg movement partially (only the last frame, the rest will likely need editing) and fixed some inconsistencies with the torso.

Clarification:



For reference, this is what the character is meant to look like eventually. I haven't measured arm length between this and the animation yet. The tail may or may not get a looping animation during descent when I add it.

As for the animation itself: The first frame is for ascending, and the fifth for descending. The rest are for a transition at the top of the jump. I don't really want to have any anticipation frames to maintain the pace of the game this is to appear in, so jumps go into the first frame directly from running/standing.

... If you're launching from a rest position, the knees should bend more in the beginning.  ...

I'm not entirely sure if you meant that the first frame is anticipation/still on the ground? I realize that having the knee(s) bent after take-off makes little sense. I somewhat like the legs switching poses I have right now though. I'm not sure how well it would look with both legs straight. I'll have to try some alternative versions for that.

The largest problem I can find with it is that the leaves as a whole aren't lit like the trunk. The roots in front aren't particularly convincing to me.

Otherwise good job.

Here's stuff from 2 days:

This first are from when I went to a museum a few days ago and drew some things there:



The day after I drew some more bullshit with my friend again:



By the way, should I shrink these down more or is this size fine?

If you want to get the anatomy right you'll have to start constructing stuff, especially the skeleton.
Probably the most important frame in my rather sloppy .gif is the one that says ''skeletons!'', which is where I do so. My anatomy is far from perfect though, so try to find some references. The .gif above only does the thorax right I think. I unfortunately drew the pelvis straight rather than at an angle, so the legs are more suited for a frontal pose.

I haven't drawn sand much myself, but here are some doodles as to how you could approach yours.

Also, the grid in your sand is rather obvious: The larger dunes are on the same height; there is a lighter streak right above the large dunes; and every dune ends at the edge of your tile, giving a good indication of where the edge is.