There is room for improvement.
The drawing style and the animation were quite OK, but in some scenes they looked unnecessarily cheap. For example, the backgrounds in the tree could use some details and this scene where David grabs sth. out of a chest looks wrong somehow.
The sound was implemented well and has an adequate quality, only David's voice becomes annoying very quickly and isn't funny in my opinion.
The story and the jokes are good, but everything could be a bit more fast-paced, the slapstick scenes should be faster as well.
I am looking forward to the next episode.