Salt Bubbles :: 8x8Size: 8x8, 9x9 with the included frame, 0. 5 inch depth. Materials: art board, acrylic, ink, graphite. This wall art is best hung in a small space, like a powder room, or in a grouping with other art in larger spaces like a hallway. Inspiration: Whenever possible, I look for images of the textures and colors of salt mines. Recently, after getting to visit some of the San Fransisco Bay salt mines in person, I was inspired to create this abstract