Airbrush and colored pencil on 9x12 inch illustration board. To figure out the perspective of the blood vessels and nerves on the retina, I hollowed out a grapefruit and drew the vessels on the inside of the grapefruit skin with a Sharpie pen.

Pen and ink for textbook of the layers of the skin.

Airbrush on 9x12 inch illustration board of the anatomy of the ear.

Airbrush on illustration board of the life cycle of the fern.

Airbrush on 9x12 inch illustration board of the anatomy of the liver, gallbladder, pancreas, and duodenum.

Airbrush on illustration board for textbook. of the animal cell.

Pen and ink on Bristol board. I used a child skull of a four year old for reference in making the drawing.