Listening through my laptop speakers means I can only comment on the mids and highs. I don't think the vocal needs to be brought up but I do think you need to find the presence frequency of the vocal track (somewhere in the upper mids but I've not got my DAW so I can't find it for you) and then I'd scoop the guitars by a couple of dBs at that frequency - not too tight a notch though - to let the vocal come through better. The guitars are a bit harsh anyway so it would probably help there too. Yes I know the guitar is supposed to be harsh but it's a bit raspy for me.