background birds color colored colors colour coloured colours cygnus-olor harmonious harmony leisure light paddling pair reflection reflections reflective ripples rippling river riverside river’s-edge serene serenity swans swimming synchronised synchronized tranquil tranquilly water water-birds waterways webbed-feet white white-swans barrier boards bollards cones conical deck decking Jetty metal metallic platform protection river views shiny waterway wiring wood wooden boards wooden platform abstract angles changing coastal cruise-liner cruise-ship currents dark deep ebb-and-flow expanse Indian-ocean motion movement ocean powerful salt-water sunlight surface texture textures vast vibrancy vibrant view wallpaper waves evening lake late night sun sunny sunset closeup flow flowing nature peaceful pond ripple bridge canal duck Little Venice London mirror woman appearance cool cooling display fountain fountains froth green greenery height high patterns regularity Rhythm shade shadows shooting shrubbery sparkling spectacle splash splashing spouting spray spraying squirting streaming trees turbulence turbulent water-feature wet