that's looks overall pretty good. It would be good to know a bit more about what you're allowed to do with the shot and what the direction is.
Right now, I like how he sits and how he gets up. After that it does get a bit funky pose wise. For instance, x51, screen right leg gets overextended. The walk afterwards feels a bit funky because of how high he lifts his legs, like on x83.
I'm asking about the direction because the pose you have when he sits looks very relaxed, maybe even bored, but not excited or energetic. But once he gets up, his attitude changes. So without any shot knowledge I would say either change the sitting pose or change his get up and walk anim so it's more consistent. But that's up to your teacher, I don't want to interfere with the direction.
From a technical point of view, watch out that the hand is firmly planted on the armrest when he gets up, so that the feeling of weight is there. Around x50 I would keep the screen right arm angled back instead of forward, so that when he uses that arm to push himself off, you keep it back there to reinforce that visual point. So I would delay that forward swing a bit.
As mentioned before, don't overstretch the legs and once he starts walking, make sure that there are no sudden forward movements root wise, like from x64 to 65.