backdrop background blue cloud clouds cloudscape cloudy cyan dreamlike dreamy formation formations free image natural nature over-cast overcast photo photograph picture puff Puffy resource scape scene scenery scenic shape shapes skies sky skyscape smooth soft somadjinn stock textural texture textured vibrance vibrancy vibrant vivid white wisp wisps wispy angles appearances architectural architecture box-like buildings business district CBD city city scapes city views colors colours concrete contemporary contrast contrasting distance distant elements exterior external glass heights high high rise Hong Kong light linear lines modern office buildings perspectives reflections skyscrapers sleek slim style views walls wealth windows air angle black coast coastal coastline gray grey HDR horizon landscape line natural scene ocean outdoors sea shore shoreline water weather wide wide-angle Africa african beach beautiful beauty boulder boulders foliage green land mountain orange red rock rocks seascape silhouette south stone stones tourism travel tree trees yellow business-district city-scapes city-views color colour distinctive high-rise office-buildings offices rectangles rectangular reflective curve curved