Rule of Thirds
The first and most important rule that all artists and photographers should know is The Rule of Thirds. The Rule of Thirds is the key to create the right balance.
Divide your painting surface, document scene into 9 parts (two horizontal and two vertical lines). And now you have a grid (same as we have through our camera’s viewfinder). Now you need to decide where are your points of interest. Try to position your points of interest near where the lines intersect.
P.S. ONE REMINDER: REMEMBER THAT IF YOU ARE WOKING ON A PORTRAIT IMAGE …DO NOT MAKE YOUR IMAGE LIKE A MUG SHOT OR PASSPORT IMAGE. Portraits should not be perfectly aligned in a middle of your canvas/document. Make some space..make imagination flow…