watercolor art of a peaceful river at dawn with lush greenery. concept of serenity, nature's beauty, morning calm

watercolor river dawn greenery serenity nature art peaceful calm landscape morning tranquil beauty scene reflection lush water foliage trees environment quiet stillness dawnlight natural freshness new day light scenery green wilderness leafage soft tranquility flow ripple riverbank verdant illustration calmness soothing refreshing beautiful pictorial atmospheric concept landscapes ai generated