Two young children in simple cotton clothes building a secret hideaway using clear plastic sheets and wooden branches in a lush meadow at golden hour, the translucent tarp creating a magical greenhouse effect as warm sunset light filters through, wildflowers of purple and yellow dotting the grass around them, distant pine tree silhouettes on rolling hills under a gradient sky of soft lavender to warm peach, hand-painted watercolor background with earthy greens and golden hour tones, cel animation aesthetic with crisp clean lines, innocent playful mood, Studio Ghibli inspired artistic style