In my opinion, 0:14 - 0:54 is the best part.
The use of the Choir Synthesizer in the first 14 seconds can be improved (for e.g. change D to G and G to A). The piano around 0:11 has some awkward notes, you should probably shift them a bit.
Yeah overall it’s a pretty nice song. If you don’t really want to improve the intro then level creator would probably crop out the intro (no offense, but honestly).

EDIT: I helped him fixing the some stuff so no more complain