For my twenty-seventh illustration for Inktober 2022, I drew a giant rift in the earth with colorful energy flowing out.
This was made in Procreate with an iPad Pro and Apple Pencil, using the Procreate Pencil brush for sketching, the Mercury brush for linework/fills, and a bunch of brushes (Hartz, Fat Nozzle, Splatter, and Flicks) for the shading and textures.
If you'd like to see how I drew this one, you can watch the time-lapse below: