My brother Chris has sent me some final concept art for our alternative Svirfneblin-inspired Ratling project (or “the nebos” as he’s taken to calling them in his very . . . Aussie fashion). He’s just finishing up another miniatures project, and then he’s ready to start sculpting the greens. I think they will look pretty amazing.
There are more images on Chris’s blog here. I particularly like the NCO.