amber autumn beech countryside England Fagus lane path pond red rural russet rusty tawny track tree bright colourful fall leaf leaves lucent nature plant scarlet shiny structure structures vein veins colors details leafs natural wood colours gold green multicoloured pattern purple season texture xymonau yellow ardennes bare beauty Belgium brown field forest grass hill landscape terrain trees twigs cloud edge HDR lake Nyberg sky trunks water waterlilies waterlily