Are these based off of something?
Some of them, yes. Some of the chest decals are inspired from Battle for Wesnoth’s orcs, also the face decal named Slayer and of course the orcish face decals.
There is also a chest decal based on an alien from Samurai Jack.

And the belt with fur was based on a Lego ogre or something like that, I forgot, that one is actually several months old.
Oh and glad you liked it Hodot!
Currently planning on making more chest decals to go with the orcs. Should I expand on the good vs evil themed kind of decals?
Cheers.