I'm no music expert, but I thought this loop was pretty good. The song was a little basic, but it still sounded good. If you are trying to go for an old nes sounding track keep it like this. If you want to go for a more modern intricate chiptune feel I would say to add more to the background and make the main loop sound ( the loudest sound that keeps repeating ) a little more varied maybe. Once again, I'm no music pro so I don't know the terms or anything but I hope this helps. By the way, what programs and apparatus did you use to make this?