swamp in the fog art. black and white silhouette of the bog with trees, fungus, stumps, grass, mist

art backdrop background black bog design dreadful everglade fen flat fog forest fungus grass illustration lake land landscape marsh mire mist moor morass morning moss mushroom nature ooze plant quag quagmire scary scenes silhouette slew slough slump spooky stump summer swamp swampland template texture tree vector water wetland white wood