Show clean, finished work. Crisp photos of straight lines and tidy edges sell painting better than a description, and natural light and wide shots work best.
Talk about how you look after the house. People are letting you into their home, so explain how you protect floors and furniture and how you leave things at the end of each day.
A colour preview is a small extra that keeps people on your site for longer and gets them picturing the finished job.
Ask the right questions in the quote form. Number of rooms, inside or outside, and timing lets you give a ballpark price before you drive across town.