As a music guy, panning the bass in the left ear only was not the best move and grated over time wearing headphones. Put the bass dead center and pan the other instruments left/right and you're set!
The platforming was challenging and I couldn't get past a point no matter how much I tried. Despite this, making the puzzle boxes and platforms in a week is impressive as anything. Great job making something clean in a week. Especially checkpoints!
That said, despite the bass being in the left ear, the music was good! I like the color choices and everything was clear as to what it was in game. Great job.