Promising game!
First of all, I want to say that I have checked your shoot 'em up the game on YouTube, and I wish this game also had the juice your other game had! The way you used post-processing is pretty great, but the particles and other juice elements not being present definitely affect the gameplay.
I think, if you can bind the music beat to certain juice elements such as screen shake and color manipulation, it would be so much fun to play. Also, certain squash and stretch animations would enhance the gameplay.
Great entry!