Rippled Surface is a typical Escher piece. It is necessary to study the image for a little while to work out precisely what is going on. The complex composition initially obscures the subject of the print, which is the moon shining through the bare branches of a tree.... It is also worth noting that Escher chose to create this image as a linocut, a print-making technique he rarely used as an adult. It was easier to carve the fluid parallel lines in linoleum because it is much softer than wood.
linocut printed in grey and black