NOW this is serious!
If you are not offended, some ideas:
1. We can animate the texture on the skin, you could pick up latest NASA shots from James Web telescope, we can add your textures into our cloud servers so as time goes by the textures can be varied at runtime, not set at compile/design time.
2. I will try the import into Unity 6 and check out the materials in Pitch Dark mode and in full daylight and report back
Please register as fan#1 :)