1. First i extracting all elements like sheep, road, mountains, clouds from their original images.
2. I'm using Color Balance mask to one by one elements
3. Sometimes i'm using Selective Color mask, but not very often
As far as lighting and shading, I actually take the cover off a lamp sometimes and position things the way I want to show in a composition.. Really helpful when doing shiny objects as well as just getting a REAL FEEL to the way light cast on and reflects off objects.