Your use of visual humor instead of relying on dialog makes this work pretty well for anyone watching!
I'd say focus on getting some more original music and sounds, and Maybe stick to one software/export everything at a larger size? There's a lot of randomly blurred/pixelated parts, that's something that shouldn't happen in a vector software like flash.
For the music check out the music portal here on Newgrounds! There's tons of free to use music and you can credit the creator in your project!
Not bad, keep it up!