Wall Cages (Blue/Pink, Pink/Yellow), 2013Steel acrylic on polythene About the Artist The unique original artworks of Callum Green occupy the ground in between painting, sculpture and installation art. Both color and form are of vital importance to his ongoing exploration of materiality. Collectable Callum Green has shown his simple and graphic artworks around London after his graduation from Goldsmiths in 2013 including at Red Bull Studios and Bearspace Gallery.