OK, here's Rain. It's made of vellum. I made diagonal marks on the papers with Caran d'Ache wax oil crayons -- lots of different greens -- and then painted over the marks with water colors -- also lots of greens. The crayons marks make a wonderful resist.
Then I had to figure out how to get the spiky effect I wanted. I folded the vellum like you fold paper for cutting out paper dolls and cut the sharp angle, so I was able to use all of the sheet of paper. Gluing was tricky. But I like it. I started some other papers in other colors but haven't finished those yet.