the wavy curves on the metal hatch are covered with autumn foliage.

wavy curves metal hatch covered autumn foliage manhole pattern wave curve green cell area steel plate slab texture abstract wall profiled ornament sheet old textured metallic material surface background copyspace grunge iron defense security guard technology industrial factory construction structure design decoration detail object building architecture development style lifestyle hard rough strong powerful geometric closeup outdoor street urban city floor macro leaves weather weathered climate change fall season sea perspective