Good attempt, but inherrently flawed
As has already been discussed, your sounds are off. And they are WAY off... I expect as a drummer to hear the snare drum beat when I hit the thing - not half a second later. Little things like that.
To really get this thing to work, you'll need to make a lot of changes. You'll need music without pre-existing drum tracks to start with - otherwise how do we know what we've done?
Also, the control system needs to radically shift. After all, unless we're the Def Leppard Drummer, drummers normally go with two hands and two feet. Kinda hard to get that effect with a mouse I know.
Still. I'm glad this got through Judgement. Try again, and keep working hard.