The drums are loud, but I think appropriately so. There are many tracks on Newgrounds that have drums that give me headaches. But I'm playing this track on my studio headphones and my head feels fine. The drums do have a strong punch, but they have a soft tone structure. They make my heart race, but they don't make my head hurt.
Nonetheless, I probably would prefer the drums to be a little quieter (pre-compression) to bring them a little closer to all the other instruments in the visual space in my mind.
Nice work man!