I've done this with my midnight orchid coloured walls and ceiling in my bedroom. I love it. It is rough enough to look "old" but smooth enough to be easy to wash and keep clean. We decided to do this as there is a lack of skilled workers in our area and maybe we are too cheep to hire someone. That being said if you can almost smooth on the plaster, you're good to go. I tried blinking my eyes....is it done yet?