That's no worries.
What I've done so far, and why it's taken a bit of time - I've split the cupboards and the deco up into 2 subsets. The deco takes it's colours from Cupboard 1 for the towels, candles and pictures (which also has it) and the plant from cupboard 2 (which is the cupboard that has the plants).
The cupboard textures themselves take their textures from the sink cupboard.
So How it will work:
Recolour the sink to recolour all the cupboards.
Recolour the mirrors - stand-alone.
recolour the cupboard deco on the cupboard to recolour the deco only.
I'm going to test out your recolours to make sure that they work to the new set, and if not, I'll redo them.
They're done.
Download new meshes for Tis BathroomDownload fixed recolours for Tis BathroomHow this works:
1. remove all your meshes and recolours.
2. download and install all the new meshes and fixed recolours.
The Sink and Mirror are unchanged. They have 1 subset, and all existing recolours work.
The cupboards are all changed - they now have two subsets. The cupboard part comes from the sink.
Cupboard 1 is to be recoloured when you want to recolour the candles, towels and picture.
I've transferred the existing recolours to new recolours.
Cupboard 2 is to be recoloured when you want to recolour the plant.
I've transferred the existing recolours to the new recolours.
I've noticed that there are duplicates with the plant recolours - so you might want to do an audit on them.
No recolours for Cupboard 3 are required.
(note, I've fixed the handles, but haven't retaken the pictures).