This octopus coloring page portrays an octopus stretching out its eight slimy tentacles. Its round head has two large eyes and a beak-like mouth. The creature's body is a bright yellow-orange color, while its tentacles blend into a brownish-purple hue. To bring the image to life, I would color its body a deep orange, to make it stand out against the dark blue and grey of its tentacles. I would also bring out the subtle coloring of its head, detailing the eyes and beak in different shades of blue and orange. Finally, I would add contrasting highlights to the tentacles, to make the octopus look even more dynamic.