by Lazur URH - uploaded on February 8, 2017, 11:23 pm
Traced from https://pixabay.com/en/smoke-fires-absarokas-mountains-1669809/. Rectangles with gradient fills, and with fancy fractal noise filtering clipped to shape.
This clipart is a remix from:
winter mist
by @Lazur URH
Surreal Foggy Valley
by @GDJ