Here we go.Love the transpositions up and down.
I would definitely like to hear to vocals up in the mix, they are good enough to be clearly featured. I think the big mono comment someone else made was something else I noticed, but the song still holds together very well without being super duper stereo.
Maybe suck a little bass out? I think the bass has a little hair on it, a little fuzz maybe? If so, it's cool but it also might be mudding it up just a little?
nice one! cool collab and cool song indeed!
cheers,
-Tom