None of them are.
The figures in the original post are from a kickstarter coming out later in the year, I don’t have anything to do with it myself but I was lucky enough to get a set of the early casts.
The tank is one of my own designs that I 3D printed, I’ve uploaded it to Cults 3D https://cults3d.com/en/users/Doctor-Spork/3d-models
The other fully painted ones I posted in the comments are from a couple of places. The big fell with the sword is from L72 Miniatures https://l72smetalminiaturesmusings.wordpress.com/ and the other two are tech cultists from Checkpoint Miniatures https://www.checkpointminiatures.co.uk/shop/ftw13-tech-cultists-with-leader/
To add to this I have the patriarch and landspeeder from L72 Miniatures, a bunch more of the tech cultists to use a brood brothers, a magus from Hybrid Miniatures, the land raider proxy I designed and 3D printed and a scratch built limo that I am building from a toy car.
This was meant to be a dozen figures and a limo for playing skirmish games with because my wife bought me some of the tech cultists, but as these things often do the scope of this project has grown arms and legs. Which is sort of appropriate for a Genestealer Cult I suppose.