Hmm, I think for a while I had a "mortar corner size" option, I guess I should have put that back in for the upload! I'de update it but my trial ran out ("Nooooo!")
Anyway, here's some screenshots of the mod I'm working on that uses a ton of FF textures, mostly the colored plastic tiles one here. Note that the black tiles were just recolored versions of the white ones! You'll also notice one of them has a modified version of angelboiii's DoomPannel 01, which is the best filter ever!
I should add that there are normal maps on the colored plastic tiles that are NOT part of my filter, which considerably improve their look, especially in the third screenshot. Also, the above are a work in progress. and the finished scenes should look considerably less sparse.