I think this captures the pensiveness and desolate feeling of the art very well! I like how you reserved a heavy bass presence for the final section. The sound design is phenomenal. I love all the synth textures.
I have some suggestions for the mix. I downloaded the song and put in my DAW to test some EQ cuts. I found a -4db cut at 4k hz to sound quite pleasing. It makes the mix feel dramatically softer and more distant.
I used Gullfoss, an intelligent dynamic EQ plugin, to see what it does and it appears to be compressing many upper register piano notes, and I found this effect to make the mix feel more open and spacious.
Finally, I think the bass pad in the final section is slightly too loud around 200hz, and it appears that it can benefit from mild low end multiband compression for greater tonal consistency.
Good luck! I think you might win :D