So, some months ago I got some tiles on Freecycle that I decided I was going to tart up that bit of wall with :-)
It took me some time to get around t it as I'd noticed that they had a damp course that I couldn't bridge. I eventually found a couple of bits of scrap wood to support the first row of tiles and got started with mortar to stick tiles on.
Ten things went a bit pear shaped and the mortar wasn't sticking very well and one of the picture tiles fell off and broke into 7 pieces :-( So, I gave up for a few weeks until a colleague suggested a product that I could try...
So,here's the end result - I think it looks better than the awful pink blockwork.