tranquil river winding through lush green hills, with a blue sky and air balloon in the background

river hills lush green tranquil blue sky landscape scenic meandering serene peaceful winding quiet horizon valley valleyview view nature wilderness rural vista outdoor pastoral tranquilview tranquilriver tranquillandscape rivervalley riverview skyview greenhills skyriver blueriver skylush lushvalley lushview bluetranquil blueriverview bluewilderness greenlandscape air balloon