Hey, this is a great start, nicely done!!
Here my thoughts:
- first frame, love the arc going from the screen right (SR) foot up to the head; in that pose though, it looks like all the weight is on the screen left (SL) leg, which means that the hips would be up on the SL side
- once you're adding more breakdowns, watch out for the x7 to x8 section, it's a big move over one frame, so if you'd spline that now, it'd be way too fast; so as you continue to put in more break downs, slow that part down by a few frames
- as he's leaning over to the other leg on x8 though, the weight would shift over to the leg, so the hips would go up on the SR side
Think of it as the contrapposto pose:
- you might have to adjust the timing of how is sitting down, depending on what you're going for. Right now it looks like he's very careful about it, which is fine, if that's what you're going for. If it's a more regular sit down, the root might go down and accelerate a bit and plop into the chair; if you'd spline this, it would look a bit even; if I space out the root spacing going down, I get this:
As you can see, the red lines are pretty even.
- watch out for the upper body movement from x34 to 35, it's really big for over one frame and therefore pops up; add a few more frames in between those two poses to slow it down a bit
- for a little detail thing down the road, as you add more breakdowns and get into splined curves, think about adding complexity to little moves; again, nothing to worry about now, make sure that the main timing and weight is working correctly, this is just a sneak peak:
> from x7 to 8, the SR foot is in the same orientation, but you could have his left foot turned inward a bit more on x7:
Then on x8 and on, as he's rotating his body away from the chair (from his perspective he's turning to his right), the heel turns outward to the pose that you have on x8.
That's more polish stuff for down the line but you're already in such a good spot for your first animation of this type, that I'm confident you'll understand it as you progress.
Can't wait to see the updates!! Nice work Jero!