Sure, would be glad to. However, I work with moving pictures (film/video) rather than stills - the nature of the beast is similar but not entirely since much in the way of graphics is built "in computer" while moving pictures are often real life (I only work with animation occasionally). Real life colors are heavily affected by light (so called luma) and so are our eyes - much more so than we are affected by color (chroma). That's why we can see light levels in the dark but little to no color. Mind you, without light, there's no color anyway.

To me, one of the things that makes graphics cool and "real" is the use of luma gradients (black shadows and white highlights) rather than the use of pure (monochromatic) color alone. This is what I was referring to by "synthetic colors".

If you look at the DB above, you can see it all over the yellow in particular (but the brown too) - mixes of black and white shadows/highlights giving texture to the surface. This also helps us perceive spatial dimension. It lends it a 3D character. But I'm aware it's hard to do this graphically - it's much easier when the sun is involved.

So much for that short comment... fortunately, this isn't a build thread.

David.