From Arachne comes this interesting challenge where you must draw something that has been reclaimed by nature. The idea is to draw some kind of abandoned, man-made structure or vehicle which is turning into a more natural part of the surrounding landscape. For instance, it could be a derelict house with an overgrown garden, or a rusty, sunken boat becoming a coral reef. Also, think of an abandoned city that has been reclaimed by nature over the past century.
Colors: 16 colors
Canvas: any size
The challenge thread
will have all the challenge updates. The thread is also a great place to post your WIPs.