I like the delay in the background near the middle and end.
the main melody instrument is good for the style, suits the mood it sets up.
drops are fine, no complaints bout em.
there are some reverb errors throughout the song however. not too hard to fix :)
the ending could use some re-touching so it loops without the delay cutting out, set it's volume back down to 0 right before the song ends to transition better. (just a suggestion)