Yes, they are watercolored using S/U watercolor crayons.......I don't use anything else to color since I've gotten them. I love them. I was pretty happy with how they all turned out....I was trying out some new sketches I had found on here...I just got this set and decided that from now on whenever I get a new set, I was going to immediately make some cards with it so that it doesn't just sit there! We'll see how that resolution goes....ha!