evergreen forest tree tops trees wood wooded woodland woody blue branches clear conifer copyspace green needles pine sky skyline tips tops tree vivid grass hill mountain path Poland top zawoja branch Nyberg spring trunks view woods alone bare-branches bird black clouds dark evening fauna lone perched perching resting silhouette tall tree-tops upper banner burning dark clouds fire glow glowing light on fire orange sunset yellow abundant approaching storm bare branches bare tree birds flock ibis ibises silhouettes storm storm-clouds above-ground architectural architecture danger dangerous elevated futuristic Gardens-by-the-Bay height high iconic icons landmarks panoramic panoramic-vistas reinforced-concrete safety scenic Singapore steel strong Super-trees Supertree-Grove suspended vertical-gardens views vistas angles