The vibrant blue sky filled with light clouds make for a perfect backdrop for the princess' playful joy. Her golden crown glistens in the sunshine, and her delicate dress flutters in the gentle breeze. She swings with her arms out, her bright smile spreading to her eyes as she often does when she is happy. I would color this page in warm and joyful tones, like shades of orange, yellow, and light pink, to reflect the princess' cheerful attitude. I would use a deep blue to represent the sky, and lighter blues to create the swirling clouds. For her dress, a soft, pastel pink would be perfect. Finally, the crown could be colored in a deep gold to reflect its beauty and grandeur.