At the beginning I gave a time period for the action of taking a step to open the door to 24 frames. but I have the feeling of too fast, so I slow down the speed to 26 frames and then snap the keys to the integral frame. I think in that way, the audience can get more information while the character taking the step.
Then I refined the hands position in order to smooth the whole rotation movement.
Also, I change the slop of the hands to fit the door opening. Reposition the place of hand to fix the overlap of models.
Refined the reflection of texture
Refined the orientation of feet.
Some rendered images: