I like the ambiance you create in the beginning. The chord progression is very nice, the melody too, but could use less repetition.
Your bass frequency is too high, I would push down an octave and add saturation.
I don't like the kick sample you used.
Your sounds are too wet (too much reverb/delay?).
Almost all your sounds have no high end so the hi hat is very loud and out of place.
I believe the song is lacking stereo, it's mostly in mono, but that could just be me.
Mixing and sound design is very important to me, hence the low score. I hope my feedback was useful though. Good luck in your future projects !