autumn beech brown color colorful colour colourful fall forest green leaf leaves natural nature pattern patterns plant shape structure structures tree yellow anas-superciliosa appearance aquatic-bird Australian background bird black-eye-stripe brown-duck colors colours common dark dark-brown duck fauna fowl grey-duck lake light omnivore omnivorous Pacific-black-duck paddling pair reflections ripples rippling surface surfaces swimming texture textured textures water waterbird waterfowl widespread wild-duck caps dry fawn fleshy folded folds fungi Gills hardened mushroom tough Australia closeup Dirt flower horizontal leafs orange petals white black browns contours cover dips exterior grooves hard horny plates layers lines outlines pointed points protection rough shapes shell shelter sides solid strength strong tips tortoise tortoise shell autumn colors autumn colours brittle brown. dry contrasts dying red shade sunlight vine vine leaves basket bunny decoration Easter egg eggs flowers graphic groningen spring vector arch border circle decorative frame image leather oval painting round square vertical