@Naryoril: Thanks ^^
@Cael: I rarely record songs in one go, so the tiredness probably comes from singing that refrain a couple dozen times in order to get it sound the way I want it to.
Transition is my greatest weakness, so no surprise there UU' (One day, ONE DAY, I WILL cover Hemisphere from RahXephon! I will! Q___Q)
As for the long notes, I rarely look whether I really held them as long as the original unless I'm fandubbing Idolm@ster songs. The thing is I tend to overdo it with vibrato, so I try to make the long ones a bit shorter, I guess I'll try to pay more attention next time.

Yes, that's German. XD
Thank you very much for your opinion, I rarely get constructive critisism like that.
@kaeru-P: I DID get voice coached, I took singing lessons in school(complicated Swiss school system and such XD), that's why I can actually sing Melt the way I did ^^' However with the university and my teacher and I having very different schedules, I couldn't continue to take lessons from her. It's day and night difference from when I covered anime songs before I got the lessons X__X'
on topic of long notes:
http://youtu.be/brMQ7-mjy6I Aimo from Macross Frontier, here's some me overdoing it with holding them too long(or something, I remembered the song well enough and didn't bother listening to the original again ^^')