This is a render I made to practice creating procedural, lifelike materials. The apple's skin is a glossy/translucent BSDF material. It diffuses the bright yellow and red patches (islands of voronoi noise layered over larger perlin noise, stretched along the triplanar Z-axis to model the streaking that occurs as an apple grows), and transmits through a waxy, dark red homogeneous volume to emulate the subsurface scattering of apple skin. Rendered in LuxcoreRender.