There are more links to your range of social media in the author's comments than there is content.
50% of the short is introduction.
The meat of the short is completely mute- no sound effects, no environmental ambiance. The bulk of the animation is taking a graphic and stretching it, be it a creature breathing or the "poking" motion. When the action takes place and it cuts to the reaction shot, it happens so quickly and ends so abruptly it doesn't give the audience much room to register what just happened.
The colors are nice, even if the character design is a little too cluttered and busy. I think you need to challenge yourself more as an animator to grow and learn to be more comfortable with techniques that make actions easier to read. I would also try to pay attention to the pacing of things you like to watch to learn a sense of timing, both comedic and dramatic pacing. Getting informed on when to linger on a shot, the beats between actions, and when to cut to a transition can only benefit you and strengthen you as an animator.
I recommend reading Richard Williams "Animator's Survival Kit." That pill of knowledge helped me mature as an artist and animator exponentially, and if you study it and practice the motions he teaches in that book (or DVD, video), you will level wayyyy up.