Pretty good
Writing was good, acting was solid. Art was a bit messy, but I'm gonna chalk that up to your style. Animation was inconsistent. On the parts where you used tweening there was some disjointing (noticeably on the snake-monster's head) and there was little to no easing used. Without easing, some of the movements come off rigid or robotic, and interrupt the movement when blended with frame-by-frame work.
Keep up the good work!