The Batman and the Fallout characters I found on SFMLab, I then used Mixamo to rig the characters and move into position. I then brought it inot 3DSMax to export as an obj and then into ZBrush to add small details and the grass and the platform, and to move the characters into position. I then used Keyshot to render it out with some base textures. I think they look similar to the Metal Earth models.