>>5983290>>5983200Oh hey, I made both of these walls.
It isn't that difficult if you've got photoshop, man. For the OP post, I just cut out squares from three other images, turned them on their side, pasted them on the new image and then made specific deletions where the squares overlapped.
For the mountain one, I cut an upside-down triangle out of the landscape and then pasted it back in. Messed with it's coloration and then blurred the background.
Thanks for posting them. I have a few others but they're not as good as those two.