Nice drum set
Have you ever SEEN a drumset? What was your reference? Jeeze did you base it off the rockband one?? Real drums don't look like that, by the way. just incase you didn't know, which it is evident you don't.
This white BG filter you do to attempt to hide your crappy/unfinished coloring is terrible as well.
It would also seem that the keyboarder has no hands, since he is obviously "holding" the keyboard by where his hands are, yet his fingers/hands aren't wrapped around the keyboard. At all. unless you actually think there's keys where his hands are.
Do you not know what these instruments are? Also, are they standing on another picture that you inverted instead of drawing something original? Or even making spotlight effects which would look at lot cooler and better than what you pooped out in 2 minutes.
Also, the guy in the sephiroth trenchcoat hashorrible proportion in regards to how small his torso is and how long his legs are. 2 stars, 1 for every minute you spent drawing this.