I stumbled over the work of artist Kris Kuksi (https://www.kuksi.com/) a few weeks ago. His sculptures are incredible; the intricacy and finesse is worth your time. What drew my eye in particular was his insane Church Tank ...
... so now I'm on a mission to build my own version for 40k. The plan is that it can be the centrepiece of a board as terrain, an objective or a NPC unit.