I did this mural of Mr Incredible about nine or ten years ago for someone’s son. The paint is acrylic because it’s easy to apply and dries within hours. I think it’s also quite stable. I used clear matt varnish over it and left about a centimeter margin of varnish all around the figure so the paint would not lift off. I’ve recently done a new mural for the family in their new house. I found out recently that my original murals (there were three others, Batman, Spiderman, and Superman) were painted over. Sad I know, but at least I gave some fun to the family while they were there.