They are just Geek Gaming Scenics pre-made grimdark rubble: https://www.geekgamingscenics.com/collections/base-ready/products/lukes-aps-base-ready-grimdark-city-rubble
Snipe and Wib, specifically the Codex Compliant series
Been kitbashing some spare Deathwing parts with the new Leviathan Terminators
Oooooh-lahhh!
Basically, wherever you go a sailing you can only potentially find one of the books you seek I’m afraid
Working on some Assault Intercessors left over from the Imperium Magazine subscription
Ties the model into the basing scheme that uses Martian Ironearth for the bases. I used the Vallejo rust pigments to get a closeish match