We need grey piece of paper, white and yellow oil pastel and aquarelle paints..
Use a white pastel to draw a thick line trough the middle of the paper. Above it draw various buildings, snow and stars.
When you are ready, fold the paper by the middle and press with a spoon the whole surface of the paper. Thus the buildings from the top part of the paper will be “printed” on the other side. Open the paper.
Cover the upper part of the paper with black, purple and blue paint.
Fold it again and press with the spoon.
When you open the paper the colors will be printed on the lower part of the paper.
Reapply the paint on the upper part to make the picture more beautiful and bright.