Photos don't do this justice. Video captures it much better. (See video below)

Gleam is 5x7 inches and fully light reactive. Shown here in natural light, black light, and no light. 

Ingredients: acrylic, enamel, beach sand from Seaside, Oregon, mylar, phosphorescent pigments, varnish, water and light on canvas board.

Yes. Sand from Seaside, Oregon. :)