holes
15 x 12 x 12 inches
oil on wood (Celtis occidentalis)

sky
32 x 12 x 11 inches
oil on wood (Ulmus rubra)

pipes
36 x 17 x 14 inches
wood (Ulmus rubra), copper, brass, steel

clouds
23 ½ x 12 x 10 inches
oil on wood (Maclura pomifera)