blades blue blue-sky chain chains circular controlled directional equipment fan farm farming-equipment gray grey old outback paint painted papyrus peeling peeling-paint perspectives pond pool pump rural spokes tail-blade water water-pump wheels white wind wind-powered windmill anemometer blow copyspace electricity energy generate green metal power propellor sky sustainable turbine air cloud clouds nature storm summer sun cloudy grass holland landscape path close Nyberg UP windpower wings mill Netherlands rotate aviation air chopper fast flying helicopter high transportation flower macro romantic spring den haag hague mills molen stompwijk