This blue and white dolphin-like Pokemon looks so cute with its large, pink flower perched on its head. The small, pink tail looks like a heart floating behind it. To color the Pokemon, I would use light blues and white for its body, and pink and purple hues for the flower. I think it would look great with an aged, ethereal feel, so for the background I would choose a light blue or white with some playful and soft shading. Add some pastel shades for the flower, and some blue or purple for the tail for a unique effect. Overall, this would give a cheerful and magical feel to the page.