Okay, this is meant to be constructive criticism so please take it in the context it is meant. That track was really, really dull. You basically loop the same riff progression for 4 and a half minutes. There's no variety, no time change, no attempt at giving the listener something different (even if only for a few seconds). There isn't even any lead work which makes me wonder if you are a band with (some members at least) still learning to play?
Vocally though is where I think the strength in the track lies. The vocals are the only part I remember after the track finishes playing you just need to shape the rest of your sound to have some variety in it. Doesn't have to be amazing sonics either, just chop it up a bit more.