Instrumentation needs a lot of work, and the dubstep doesn’t sound too well either, it needs a more gritty guitar sound and it’s barely reverbed if reverbed at all, and the bass doesn’t fit well with it either. The snares are out of place in some areas as well, usually the metallic dubstep like noise, those noises which also needs some decay to sound decent. Dubstep is a hard genre, I know from experience, but keep trying, I know someone like you has the potential to become the next Skrillex :D
Also, heres some words of advice, when you do get whitelisted, your songs will become available for geometry dash, but people don’t just go Willy Nilly using your songs for GD, they must be good as well, meaning, the whitelist isn’t the way to getting your songs in gd, it’s the frontpage that will lead you there, and one of my songs got the privilege to be put on a gd level that got both rated, AND featured! It’s called slOw by Ehab090, look it up, it’s great!