Pretty good. Wish there was a punchline at the end though.
My pointers are as follows: Speak up a bit into the microphone, go ahead and try to find some music for the background if you can, but a very good start! I'm Expecting a lot more!!
Well animation could use some work, the paint stencil is the most common and ineffective way to animate. Try making some shapes on a transparent background, then when you want to animate, you can either move each shape independently, render image, and redo (Long and tedious but requires no coding), or use a program like Creative Cloud to create scripts and actions for limb specific movements(Need a basic understanding for code, but make the process much easier to produce animations). Voice acting needs some work, but I did chuckles at how the green one said "Moon Pi~es".
Biggest pointer of all, while animation may be dull and voice acting meh, develop a plot so there is something the viewer can get caught on. The most important thing for any starting animator is the viewers attention. If you can develop something that they can laugh at or enjoy, they will watch it. Good luck and keep at it.