I think you're right, the key change helps this stand out. Nice work.
Best remix of the chemical plant
I love the way this remix sounds, but I think it can be improved even more with the addition of an intro. May I suggest, for example, the intro from the Modern remix of Chemical Plant in Sonic Generations?
really cool remix
CHEMICAL PLANT AND ITS MUSIC IS AWESOME. ENUF SED
Please contact me if you would like to use this in a project. We can discuss the details.