3 point lighting:
use it as a basis for scenes, you can always add more ontop of it
create a spotlight (main light). the main light should be more elevated above the scene than the other three lights (like the sun). change its colour to "eggshell" like. This light should have a high intensity so the other lights dont over power the scene. use the same light attributes as above to test out the light, you can change everything afterwards
create another spotlight, this is the secondary light source. change the colour to "pumpkin orange". this light should be comin in from the opposite direction than the main light. this light adds "mystery" to the scene. low intensity. use the light attributes stated earlier
create another spotlight (fill light). because we've already got 2 warm lights, we want to balance the scene out with a purpley colour (dark purple so its not too bright). position this light between the two other lights low intensity. use the light attributes stated earlier, altho you dont have to use a shadow in any of the lights apart from the main light.
the light colours can be changed to what you like (buti like the colours above).
dont forget, you can always add more lights to the scene to fill it up as needed, it really is all about experimenting
3 point lighting is essentially 3 lights at different angles
this is a really fast lighting method compared to global illumination and will give you almost the same effect (if used correctly)