exterior shot replace the stone and at the base of both walls introduce a continuous recessed pebble trench detail create a narrow linear channel along the wall floor junction approx 2 4 inches wide recess the channel slightly below the main floor level subtle depth fill with small uniform dark pebbles charcoal black tones matte finish ensure pebbles sit cleanly inside the trench not spilling onto main floor define a crisp edge between floor and trench
