You and Imogen are like this? (holds up crossed fingers).
Is this a new mix contest? Because I can hear your guitar all over this. So you're not just mixing her song, and you're playing the harp on it too.
It sounds really good. And I hear your horns. Not sure if you're doing everything except the vocals or not.
I recognize the classic vintage guitar played through the vintage amp "sound." It has a Claptonesque tone.
You may want to check your rig though? I could have sworn I heard it "whistle" at 1:49?