Yes, this is Day 5. And behold! The ugly orange smear marks have disappeared behind the wall paper! Three cheers for covering up ugly things!
The room has been papered all round and now just needs a lick of paint (and if need be there must be 2 layers of paint to hide the seams and blotches shining through) and the slotting into place of the radiator.
I'm concerned there's not enough space now to put it back and it will be right up close to the new wall.
But hey, it's nearly done!