I could give you some things to improve. =)
1. Try to find audio that is a bit clearer. Use audacity (program) to delete some of the back noice (I think the option is called noise reduction).
2. Choose when to use the "boiling" effect. In this case itÂ´s not really necessary. ItÂ´s more when things get a bit too static that you should use it.
3. Try to experiment with different camera angels. Like when he is holding the white thing up (I donÂ´t know what itÂ´s called), you could make a closeup so that you get some variety and so that you can make out what he is holding up.
Other than that, itÂ´s a really neat idea to make short comic skits about comedians. Keep it up and keep improving and this will be awesome! =D