I had one of my rooms painted due to the cathedral ceiling. Upon completion of a 2 coat job I told the painter I saw white marks (see through spots) which he took the roller and went over to cover up. He had washed his roller prior to this but the white spots are gone but now colored spots which are different shade of the paint. Is it watered down maybe? Does the whole wall need to be painted or anyway to touch up? It loos like someone sponged some marks on the wall basically. What did he do wrong?