Here’s a WIP of something different and worldbuild-y: A refsheet for a species of giant mechanical whale-like creatures, created inside massive volcanic forges and heavily modified for use as airships. The gold bits are restraint devices to keep them under control.

That’s pretty much all I’ve been able to nail down regarding these guys. The finished image might include internal cross-sections or schematics, dunno.

(also I know whales don't have tails like that)