I love how you used multiple camera angles and used plenty of animation poses.
The body parts of your characters in this movie often had the wrong proportions.
The arms sometimes lacked shoulders attaching it to the rest of the body.
Hands would sometimes lack wrists in this movie.
The human has a lot of joints for the fingers, hands, feet, toes, neck, back and head.
These kinda details take a lot of practice to hold together.
You may need to people watch more often.
You could act out the animation poses.
Create more simplified versions of the poses in advanced.
Do whatever is necessary to not only make effective poses but also improve the proportions.
Practice by observing actual people, action figures or something else.
I would advise you to act out each pose and than recreate as a drawing.
Keep making new movies and practice drawing ways to give connecting joints to all the parts.
The actual movie itself while lacking in the graphics department still had entertainment value.
I love the music used for this movie.
The voice acting was nothing too special.
The video itself was very funny.
I enjoyed the silliness of this movie.
Just keep practicing and producing new movies.
You'll improve in the graphics department over time.