Love the comp. You really got the plates connected, AO, shadows, that’s the most important in compositing CGI into a live plate. As long as you get that and match the lighting, then your character can be as cartoony as Roger Rabbit without looking out of place. Very good job.
A note though. In your animation, you actually have stops in movement - you should work on softening the ease in/outs in your movement, but that’s a minor complaint in this…