Nice details.
A lot of people use Andrew's music in movies. Myself included. In hindsight, I learned that one should really ask permission first...but that said, the use of his music which is freely available for all to see in a Flash cartoon which will have no lasting permanancy is a very minor faux-pas. I like your artistic style. I don't think you just "copied TouchtoneGenius" (notice how it's always the people who don't animate themselves who bitch about this?). That said, you picked a really ODD couple of songs to make a movie for...