It was bad :/. Why? Here:
1.You spelt EchoMarine wrong
2.The video was only: Music, Text and Replays. That's nothing amazing.
3.Only video effect was fading to black. You could add some more effects though.
4.Replays weren't so amazing( not that I can make better). You should make something like 4 player replays.
5.You found the right song so you should made it fit >.>
6.There was that [Game] box in left down corner wich was in few replays there.
My thought:
This video seemed like: You added text, made a few screenshots and added text to them, then recorded replays with moving camera in "cool" and "goodviev" way. Then you put all that together and added Thanks for Watching text at the end. You found a song and just put it there.
I wanted to be honest and nice.
You could do better for your first try and you should ask EchoMarine for help. You could do better, but you didn't. Video wasn't so bad actually, it was something between bad-neat.