Last month I work on one idea to create artistic backgrounds and brushes. You can see the result.
First I bought one nice canvas, slice it in 12 little squares and start drawing with soft medium brush.
By adding different colors and a lot of water i made 34 artworks. From them I create 5 sets with backgrounds and photoshop brushes.
They can be used to create beautiful backgrounds, bubbles, shapes that looks like they are painted with watercolors. All you can do with this brushes depends on your artistic skills and Photoshop knowledge.
Buy them and challenge your creativity.