vibrant watercolor art of a lakeside picnic setting with a boat and green scenery, capturing the essence of summer

vibrant watercolor art lakeside picnic setting boat green scenery capturing essence summer outdoor fun enjoyment beautiful scene nature relaxation leisure sunny day refreshing refreshment happiness happy joyful recreation tranquil serene waterfront soothing calm peaceful quiet idyllic landscape vivid painting illustration colorful cheerful vacation memories sunlight shadows riverside pastoral ai generated