The Room by Calvaire

Hey Cakewalkers,
 
I can't put a URL on here. but its on youtube. Titled: TGGP: Calvaire - The Room (With No Doors)
 
This is a recent mix i've done for Calvaire, a melodic hardcore/metal band. I haven't done a lot of mixing, but for this one, i spent the most time.
I also did the Mastering.
 
The Good Gang Productions is a team I am a part of, that is run by freelance digital artists of many art forms.
 
So please listen to it, because i need your feedback, what have i done wrong? so comment away.
Thanks.