Hmmm I like it overall!
The orchestral/instrumental part before ayu's vocals come in, I thought it was EPIC... xD
And then the verses someone sounded a little out of place ..
and then the chorus was great
XD
I suppose if we heard the verse while not watching the video would be nicer (or full song~).... I think....it's that disjointness (?) of her vocals in the verses that made it odd along with that melody