blurred abstract background of a collection of variuos sized rocks.

rock stonewall soil boulder green wall flooring pebble gravel brick cobblestone geology rubble brickwork bedrock asphalt floor wood grass blurred abstract background collection variuos sized rocks various stones pebbles texture nature natural outdoor grey brown minimalist design pattern rough surface composition scattered assorted grayscale landscape grungy muted macro close solid earthy organic details stonepile garden rocky ground abstracted artistic textured neutral backdrop outdoors shallow focus zen tranquil exterior park