This coloring page is truly mesmerizing! The dolphin is so graceful as it leaps out of the deep blue ocean and its white belly shines in the sunny blue sky. I would color the dolphin a light grey, with a darker shade of grey for its fins and a deep black for its tail. Its curved beak should be coloured a subtle pink and its eyes a bright black. To complete the picture, I would colour the ocean a deep sapphire blue and give the sky a brilliant, baby blue shade. It would be a truly stunning sight!