Well, I'm back!
So I worked on it again last night to fix some of the levels I'd fucked up, and you can hear the result below.
However, after my "accomplishment", I decided to have a shmoke while listening to it, and I noticed my input meter jumping around a little. That's when I realised my guitar cab mic was plugged in, and I got the crazy idea of recording the sound of the mix in the room, and mixing it back in to see how it sounds. This version is also attached, for your listening pleasure.
However I fear I've lost all objectivity at this point so I'll leave it up to someone else to decide if it's better or not...