First of all, thank you so much for you comment!
"The beginning could have been 'smoother' (I mean that the music begins a little out of nowhere)."
You're right, for me that was the major flaw of the AMV, I tried to fix this but I can't.
0:47 : you should have cropped this clip so that the watermark doesn't appear
I didn't though that the watermark was a problem o-o. But next time I'll fix it for sure.
Some scenes were too long I think (0:17, 1:14), and some others were too static
I have like, one episode to tell this story and I tried as much as I can to fit the sync, but the number of good scenes are really low. But you're right.
1:23 : it feels weird to see a girl singing on this song but why not.
It doesn't was my intention to make a Lip Sync or anything like that.
I'll try to improve as much as I can in the next video.
Thank you very much, again.