I ported some good looking Wallpapers from https://hellclan.co.uk/resources/5/ to vtf.
If you have any other cool wallpaper like Amins glitch wallpaper, you can add it yourself in CSS by following my tutorial here: https://hellclan.co.uk/threads/41443/
NB!
To "install" the wallpapers, follow the "README.txt" file inside the .rar
Enjoy!