Genial!
As much as I like your series Edible Castle and Whitmore, I found this to be funnier and better paced. The same can be said for Caulderbank, but that isn't what I'm reviewing. With that out of the way, on with my review.
In terms of art and animation; Busker is simple, but to the point like Beavis and Butt-head, Daria, The Critic, Dr. Katz, and South park. Nothing too over-the-top, but gets the point across with a good mix between tweening and frame by frame. Then there's the sound, which has my approval in my book with great music and good voice acting. It may not be Egoraptor, Sam Haft, Josh Tomar, Larry McKee, or Druox the Shredder; but it fits for what it is. As for the comedy, I found this to be pretty funny ranging from the Whitmore-brand keyboard to the off-kilter caricatures. While it may not be as funny as Rats on Cocaine, Norse in the Ninth Ward, or The Three Stooges; but it doesn't need to be like those. However, it isn't one of those shove as many joke ideas without much thought put into either the jokes or the plot shows, nor is it chock full of social criticism to the point of being pretentious and self-absorbed.
What I do like:
-Funny
-Good art and animation
-Original
-Great music
-Good voice acting
What I don't like:
-Could have been funnier, but that doesn't matter because it's good enough as is.
Overall: Here's a nine out of ten, Will.