Maintain symmetry in the center. This mandala must have at least 3 fold symmetry. Decide which areas you want to be negative or positive. Start outlining and filling in with black marker. Be conscious of the density and intervals of the repetition in relation to the rest of your mandala design.
Repetition is regular repeat ing . . . . . .
Alter the new design as much as you want to make it successful. You can keep the two designs visually related or depart widely from the first mandala. This is an oil and it will streak. Mix your colors on a pallet, or if you are mixing a larger amount use a container with a lid. Use a cheap brush for mixing.