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Good song indeed! There are a couple things you should improve, however, like the first frames, where there's this 4-channel echo. All the pulses are playing the same note, which causes the echo effect to be destroyed because their pitches should vary by a slight amount (say, put a P7F in one channel and a P81 in another) in order to give this echoing feeling. There are some places where you applied vibrato to these 4 channels and it actually sounded pretty cool, so this might give you an idea of what I'm talking about.
Also, there are volume control problems as I see. The bass and percussions play along fine but the lead is too loud and it drowns everything else.
Speaking of percussions, maybe you should learn a bit about DPCM if you don't already. The two samples you loaded into the module have a long space at the end where it's just silence (supposedly), but due to the way DPCM works, it creates a very high-pitched sound which is annoying and can be clearly heard in those places when the kick is played and everything else is in silence. Also, it's a waste of space! To avoid this, go to the DPCM tab, choose a sample, press the EDIT button, select the end of the sample you chose and then click DELETE. This way you'll get rid of that useless ending portion.
Well, the song sounds pretty nice and I liked it, but try following this advice and see what else you can improve in the song so it sounds better.
I made a small change to frame 10 (and therefore frames 18 and 20). The vibrato gives a great echo feel but I added a P7F to Pulse 1 and 2 of the MMC5 channels, because the notes still clash before the vibrato is triggered.
Other than this, I think you made the song sound a lot better. The echos at the beginning were awesome!