Nice little melody you have, and the noise channel stuff is grounded and solid. The harmony comes in VERY late- the listeners interest is likely not to last long enough for it to come in. This tune also begs for some triangle waves. Welcome to the world of chiptunes! this is a nice first try- I look forward to hearing more stuff as you develop. Feel free to message me if you have any questions, I may be able to help. Cheers!