Flock of birds flying in diagonal formation across gray twilight sky beside power lines

Curved ribbed architectural wall receiving dramatic geometric shadow grid from glass atrium ceiling

Commercial airplane silhouette flying through dramatic overcast sky above dark treetops

Modern glass skyscrapers lining wide urban boulevard under heavy hazy overcast sky

Dense riverside urban skyline stretching along waterway under heavy overcast sky with mountain ridge backdrop

Lone silhouette standing at shoreline watching motorboat speeding across vast open sea under overcast sky

Two birds soaring in silhouette against overcast gray-blue winter sky above bare tree branches