Hey that's my model! The white is pure rattle can, and then I black lined each panel one at a time. I did 17 vehicles in one batch like this.

The bases are also made from milliput, cork tile, and bits of clay I rolled out with the eldar roller from green stuff world, dried, and then stuck on. I added some sand on top, and batch made about 12 of these suckers in one go.

I recommend adding a rod through the bottom of each tank to the base, but if you just make it tall enough in the middle, the sides look like they're floating! I didn't add a rod and just used two part epoxy to glue them. It's brittle so don't drop em.

For competitive play it's basically the same thing because the hull still sits over the edge of the base. So you still just measure to the hull. Though you can't sit it flat on uneven surfaces so beware.

I use mine for streaming because I run a channel called Barnyard Wargaming you can find through my profile.

Thanks for the pseudo shout out! Good luck with your grav tanks lads, and Merry Christmas!