This picture shows rhythm because it has the same blocks being repetitive throughout the drawing.
How to grow moss on anything. This is beautiful.... #Gardening #Moss
°jpn° Jizo stone statues in the Moss garden at Sanzen-in Temle, Kyoto - Ohara More
japanese green sandstone pebbles, drilled and threaded onto galvanised steel armature, mounted on french oak base. dimensions 400mm diameter, 940mm tall including wood.
Instructables - SlipCasting ; More on Porcelain slip casting. Includes clearer images of process and molds themselves. I will not cover mold-making. Image presented seems like a good way to present "casting" step.