I love Rothko, I try to teach who he is and what he has done. The easiest way is to copy his works of art, his colour’s fields and compositions. With soft pastels start creating fields of colour on white, black or colored cardboards. The colour can be blended with your fingers, or with a brush dipped in baby oil. We should try not to mix the color fields, rather to color within the rectangles. The completed drawing is fixed with fixative spray or hairspray.
Here some paintings of Rothko, just for inspiration: