Not bad for a first try
The lip-synching is pretty good, and something much better animators struggle with.
It is reasonably well drawn, though it lacks animation in a lot of scenes
Music is well chosen.
A lot of scenes are lacking in animation (in particular when items are flying out of scenes). You could perhaps make more effort to make backgrounds interesting, with things moving around behind the action (even if it is a repeated motion).
The story was a bit slow paced, and the jokes were pretty poor (more grimace worthy than laugh worthy). Work on your scripting and pacing- it would be funnier if it was faster and the punchlines came more frequently. There was a lot of pointless dialogue that could have been axed without damaging the story.
Still, pass worthy, which is a victory in itself for a first timer.