This vibrant coloring page depicts a dolphin gracefully swimming near the sparkling turquoise ocean. Its sleek body is a deep grayish-blue, with a long snout and two large fin-like flippers. Its tail is magnificent, curved outward with a sharp point at the end. I would suggest using bright blues and turquoises for the ocean and subtle shades of gray for the dolphin's body and flippers. To finish, try adding complementing dark shades such as navy and charcoal for the dolphin's details. This would be a wonderful way to bring the picture to life for a beautiful, vibrant display!