Pretty adventurous for your frist animation, i recommend starting from basics. Understand the 12 principles of animation and practice body mechanics before attempting human emotions.
Shoot video reference of yourself before animating a scene and plan out your shots before touching the software.
Alot of your animation was hitting walls and looked mechnanical, another major thing is anticipation, you had alot of seriously fast movements... which is fine but the faster the motion the greaters the anticipation needs to be.
Be aware of overlapping and what part of the body will move first in a motion, the brows often anticipate the action of the head etc.
Essential animation reading:
Animation survival kit by richard williams
The Illusion Of Life
Anatomy books, ones relivant to motion are good, i recommend dynamic figure drawing by burne hograth.
The 12 principles: here
Good Luck !
Adventurous scene, and a good attempt, modelling was relatively strong and the idea has potential.