kids enjoying a storybook outdoors in nature - art

children reading book tree outdoors vector learning nature friends kids mountain landscape green education storybook forest peaceful artwork drawing happy sunshine daytime sitting grass together friendship youth study knowledge literacy enjoyment cozy childhood explore adventure bonding relaxing serenity smiling cartoon imagination joyful inspirational classroom blissful trees hills scenery naturethemed ecology carefree discover interaction happiness creative wholesome playful illustrationart blue sky innocence tranquil boys girls togetherness elementary harmony fun growing garden blossom engaged contentment inspired relaxed