I took the cheetah photos from an edu website.I believe they are gpl,pretty old too.
I made this WP for the fastest non-source distro on earth-Vector Linux!
www.vectorlinux.com

Its better than ubuntu,believe me (no Dep Hell,the ability to compile almost everything from source,twice the speed,faster booting,etc,user friendly too).Has great Gui system tool (vasm)... (unlike slack)lol