He also specializes in trompe l'oeil, such as the 18th hole of the Pebble Beach golf course in California that he re-created in a clubhouse. That one was 56 feet long and 16 feet high. Ask for references, and both call them and go see the artist's work. Look at work that's a couple of years old to see how well it has stood up over time. Ask previous clients what the artist was like to work with.
Work can take a day or a week.
Hand painting takes longer than airbrushing techniques. Ask whether the room can be used while the painting is in progress, and whether all furniture and other items must be removed. Many artists have ideas you might not have thought of. Some use more than paint on their murals. Valdes, for example, used fabric trimmings to outline the clothes the Mardi Gras revelers wear.