Another suggestion is Dulux Egyptian Cotton. I had it in my bedroom and it does have slight pink undertones so maybe worth getting a sample pot. It is quite similar to Skimming Stone. I suggest you paint your samples onto A4 cards and try them on different walls in the room stuck with some blue tack. I was advised to do this and it really helps. It works better than lots of paint samples on a wall which can be confusing. Purbeck Stone is a lovely taupe. This is Egyptian Cotton.

It’s probably limewash. Practice on some other bricks before painting the most visible feature in your house, don’t forget limewash is corrosive so lots of safety goggles, gloves and dust sheets, with the window open…… and be prepared to apply 3 thin coats rather than one thick coat ….water it down significantly (3parts water to 1 part limewash).

I use Dulux paints, so I'd recommend Dulux Easy Care in brilliant white matt. Emulsions are wall paints usually in matt or silk finishes. I've not used eggshell paints, but I think they're suitable for walls and woodwork. This will help explain the different finishes, https://www.dulux.co.uk/en/expert-help/dr-dulux-paint-finishes-explained

Aw that sounds beautiful, I like Wevet as well. What colour grey did you go fascia’s. I agree using Johnstone we have done that with the hall many thanks Daily xfascia’s