Famous Minds in Precision Machined Busts

2x2 grid,  4 famous mathematicians in a 3D diorama of their lab with a clever pose.   Anchor:   `[Uploaded Image]::3.5`
  Morphology:   `Precision machined unibody bust, continuous surface geometry, integrated slider controls, speaker grille vents, rigid sculptural form, statuesque representation, no organic separation::3`
  Material Physics:   `Sand-blasted anodized aluminum (Silver), matte ceramic coating, uniform material distribution, cold metal touch, CNC milled finish::3`
  Illumination:   `Soft diffusion studio lighting, gradient reflections, minimalist product photography, ambient occlusion::2`
  Render Stack:   `Macro lens, shallow depth of field, 8k resolution, photorealistic rendering, Octane Render::1`
  Negative:   `[Human skin, flesh, pores, eyelashes, hair texture, organic matter, biological, two-tone, makeup, grid, graph paper, lines]:: -1.5`