many of the graphics in this image are from the Gzdoom hi-res texture pack, which i didn't make. i'm not sure who the author is, but i'd like the author to take a look at this and hopefully add it to the texture pack. Also note that i need to know what size should i make each of the 9 images into.

I'm sorry this can't be used, because it not created from scratch

do you know the authors who did the graphics of the baphomet (goat face) and pipes? those are the only things that i need to get permission for.

IDK, but i think these are the texture artists.
Adrian Carmack
Kevin Cloud