Was not great.
Some of the shorts were just bad.
Like, poor drawing, poor animation, simple loops and whatnot
.
A couple REALLY stood out and they were good, but as there were no authors names or something to tell them apart, I cannot give them the credit they justly deserve.
Song is a goodun.
But I genuinely didn't get a "mature and serious theme".
It basically seemed to me that your theme was threefold and a slightly less well thought through forth idea:
1) Fighting causes dying
2) Dying is bad
3) Therefore, fighting is bad
4) People really enjoy walking on pavements in the rain, especially whilst wearing hats
Needless to say, I did not enjoy it.
Apart from the two things that were good.
Which were the guy singing who genuinely looked real, and the person smacking on the back of an eyeball.
Footnote: If you don't want people to say "LOLZORZ EMOS R TEH GHEY!" do NOT put an animation with self harm OR Greenday. That's just asking for trouble. And walking along on the street looking morose, glum and wearing a hat can be seen as a bit Emo.