Interesting sound. I like the song overall. The piano chords sound nice, and the synth loop. Very mysterious. The ending is abrupt and the mixing can be better, but you'll learn than it time. The drums are also interesting and out of the ordinary. Good job.
making a full version based on this concept would be a good idea
but the snare and high hat kinda blended together near the beginning
and the piano kinda got old after while
and i was kinda hopeing for a little morenear the end, i know its only a demo
but its called f*ing with your mind, just stright up shove the song in ours face lol :)