Debris pattern, Image 1

Debris pattern, Image 2

Sand and water, Image 15

Sand and water, Image 16

Sand and water, Image 17

Sand and water, Image 18

Sand and water, Image 19

Sand and water, Image 20

Sand and water, Image 21

Riverbank, Image 6

Pebbles and sand, Image 1

Sand and water, Image 22

Sand and water, Image 23

Sand and water, Image 24

Sand and water, Image 25

Sand pattern 15

Sand pattern 16

Sand pattern 17

Sand pattern 18

Sand pattern 19

Sand pattern 20