This tornado simulation looked like some kind of a ghost to me. Museum of Science and Industry in Chicago. I used Sara’s tip on using the Vintage Blendable Palettes as masks. See details on the blog.

Vintage Blendable Palettes No. 10
Graphed Notebook Paper Pack No. 11
Lightly Linens Paper Pack No. 16
Gesso No. 05
Scratchy Masks Brushes and Stamps No. 04
Painted Photo Masks Brushes and Stamps No. 01

Studio DD
Readymade Layers: Halloween Edgers No. 02