Here is my submission for your challenge, josephine12cute^^
Why this one is for me the hardest ? Let's say after all the credits XD

Render : ◘
+ 2 wallpapers from wallpaper-s.org
+ 3 textures from Urban Dirty
+ 1 texture from my software (photoshop, I guess XD)
+ 1 colored layer (red)

Layers : 8
Time : 2 hours

Let's explain, now^^
I like to make my life harder XD So, when I started to do that wallpaper, I chose only strong textures. Those of Urban Dirty are, for my POV, hard to blend with anime... They're real photos so it looks like a photo XD Plus, the 2 wallpapers (in 3D art category) I chose were really dark and darker blended together. You all must know that, when you use a strong texture, it makes everything darker. My main difficulty was to use only dark/strong-looking things and try to don't have a black BG (and wallpaper) XD
So, yeah, I did my best to have an other sight of the pictures I used :3
I also wanted that to look like an end of the world XD Did I succeed ?

I hope I follow your rules, sephine !!^^
And hope you like it~~♪