The sphagnum you have the Phal growing in is really wet. Any roots in the moss may rot but you have plenty of healthy roots growing out of the pot. Could it be some kind of fungus? I would wipe the healthy roots down with a little alcohol. I'm not sure how you would grow this in the UK. I'm in Florida and my Phals are in fast draining mix because I grow them outside. Hope this helps

Thank you! I've done a bit more research based on your suggestions and I think the first one might be Sedum Adolphii and I agree that the second looks like Perle Von Nurnberg. I've found a couple of images of an Echeveria Pulidonis hybrid called 'Pink Edge' which looks like the third one. Thanks Helen, I think it's amazing how succulents can grow from just a leaf! No. 2 was just a leaf cutting freebie and it formed three rosettes. I'm sure you'll grow lots of beautiful plants. :)

Are both the same? Or one or the other? Thank you and sorry for all the questions by the way

There are other Torenia forms where the flower color fades as the still open flowers age, that is probably what is happening in this case also. All the more so because the structure of the specimen shown looks to be that of a single plant, with all of the evenly distributed stems coming from the same very small base.