serene landscape: lone tree standing on a lush green hill under a clear blue sky

landscape tree green hill blue sky nature serenity outdoors lush peaceful scenic environment beauty idyllic tranquil greenery vivid summer countryside solitude simplicity horizon rolling hills environmental clear daylight single field agriculture growth natural daytime open space ecology pure sustainability remote flora seasonal panoramic farmland pastoral pristine unspoiled expansive calm refreshing hilltop wilderness serene landscape: lone standing captivating features beautifully curved set backdrop cloud-speckled symbolizing peace