I think the piece is really harmonically interesting! It may sound a little more sophisticated if you avoid exact repetitions of phrases - to me this feels a little at odds with the dissonance of the harmony. This piece would also be very hard to play IRL.
The velocity of some of the sections is set too high. I really liked the changing dynamics but be careful it doesn't distort.
Finally, put one piano in the left and one in the right. You can't hear the antiphonal exchanges! Slap some reverb on too, makes it sound more real.
Thanks for the review! Yeah the mixing was done quite poorly, and that's for the fact i actually made it on a rush. But whenever i have the opportunity to give a remaster on it, i'll do it with no doubt.
Yeah i wanted to go nuts with this harmony. I wanted to put some chromatissism, tritones and inharmonic intervals in a lot of places. Also when it comes to phrase repetition, thx for the tip! And yeah, this is probably on Liszt's level of technique. xD
About the dynamics, i've noticed it too, but as i said, i made it on a rush (actually i don't know if that counts as an excuse, anyway).
Also thanks for the hints on panning and reverb, this was actually my first piano song so i'm still fresh on it. :P