A SMW Volcano background from Super Mario Maker 2. Made and credits to: PixelMarioXP. And this graphics is officially for the C3.
I'll have to reject this graphic due some issues involving its aesthetics.
First thing is that the lava part in the top of the mountain doesn't quite fit with this specific geometric SMW Background. It feels out of place and does not looks like lava. Lava is not only the top of a volcano, usually, these formations have small "veins", which lava runs through, crossing the mountain.
The second issue is that the shape of the mountains does not contribute for them to look like volcanos. The end result is that background feels too flat.