I thought That the overall chord progression was good. i just thought that it could be took alot further in terms of arangement and compostition. also, drop wasn't matching in key. some time spent learning a scale might help. also make sure your master track is under 0 db, otherwise, you'll clip. if you want a good volume level, mix the drums at -10 db and then set everything around it, as the drums are usually the highest volume in edm. i also suggest working on sample choice for the drums as they come out very weak and flat. if your drums arent loud enough, some subtle sidechain compression can work wonders.