cascade enviroment fall green jungle pool river splash spray stream swim tropical water waterfall blue calm clouds horizon lake mirror nature ocean reflection sea sky surface wave canal channel church city exchange german goteborg gothenburg hall stock sweden thoursie town car wash clean cleaning espuma foam soap soapy sud suds wash wet window duotone forest ground reptile sepia Soil summer terrapin tortoise turtle turtles Cactaceae cactii cactus desert dry flower petal plant prickle sharp spike spine spiny