Found this product in the basement amongst my craft stuff. Me thinks it will fix my little problem. It probably is the equivalent of impasto. I applied it with a cake frosting spatula. Then tapped it here and there to create a stippled effect. I think I came close to creating a stucco finish. I will know better after I paint it. For now, it needs to dry. So nothing more to do until tomorrow.
I dug thru an old bag of beads and charms and found a clover! I smashed it into the Texture Magic Dimensional Paint material . I will paint right over it too. I reviewed photos of actual cotswold houses and some masons actually mark their houses/work in this way. So I hope it turns out. I'm very excited about the possibility. ; D