Squirkling works perfectly for rendering diverse highly realistic drawing subjects, including many found in nature as well as several made by humans.
Trees are perhaps the most commonly drawn objects in art. However, most of the time we focus on drawing trees full of life and color. This tutorial takes a detour from this trend by giving you a step by step process of drawing an old, leafless, and colorless tree. This is also a great tutorial for anyone who wants to learn about adding intricate details to pencil drawings.