Kidney Illustration
Medium: Prismacolour pencil crayons
Client: Personal project
Purpose: This hyperrealistic study focuses on a cross section of the kidney, capturing the layered anatomy from cortex to medulla with detailed texture and form. I aimed to depict the fibrous capsule, striated pyramids, and smooth collecting system with anatomical accuracy, using light and shadow to emphasize structural depth and realism.
Process Work
In developing this kidney cross-section study, I began by collecting photo references of pig kidneys to closely examine their color, texture, and structural detail. Pig kidneys were selected for their close anatomical and physiological resemblance to human kidneys-one reason they are used in xenotransplantation research. I further studied the organ by cutting open actual pig kidneys, which helped me better understand the spatial relationships between the renal cortex, medulla, and surrounding hilar fat.
Before beginning any hyperrealism piece, I create a planning sheet where I bring together refined sketches, texture studies, and color palettes. For this drawing, I produced graphite pencil studies of the kidney’s internal structures with accurate anatomical labeling, and mapped out the colors I would use for each region. This preparation ensured that the final rendering balanced anatomical accuracy with a lifelike depiction of the tissue’s surface and depth.
I render my illustrations progressively from one corner of the page to the other, carefully building up detail, layering hues, and incorporating specular and reflective highlights as I work. This approach allows the image to develop organically, enabling me to assess the composition in real time and make precise adjustments throughout the process.
