I came across Alchemy while watching David Leroy’s fantastic speedpainting video of a piece of Durian concept art. It’s a really nice way of generating some chaos to help inspire your drawing. The interface is mininmalistic and intuitive, and to tools create some really interesting shapes whilst also allowing a decent amount of control for once you want to start picking out specific forms. I’m not the greatest painter, but I think I managed some interesting results, starting with alchemy and then moving to GIMP to do the main part of the painting.