A large octopus swimming in the ocean with many fish

Please create a charming picture for a children's book. In the center of the image, there is a friendly octopus with eight tentacles, smiling happily. He's swimming at the bottom of the ocean, surrounded by colorful corals that rise up like magical towers. Playful little fish swim around the octopus, as if participating in an underwater dance. The water is crystal clear and gently shimmers with sunlight that penetrates from the waves at the surface. I want this image to be full of vibrant color and convey the wonder and beauty of the underwater world to children as young as eight.

verybadimagenegative_v1.3, ng_deepnegative_v1_75t, (ugly face:0.8),cross-eyed,sketches, (worst quality:2), (low quality:2), (normal quality:2), lowres, normal quality, ((monochrome)), ((grayscale)), skin spots, acnes, skin blemishes, bad anatomy, DeepNegative, facing away, tilted head, {Multiple people}, lowres, bad anatomy, bad hands, text, error, missing fingers, extra digit, fewer digits, cropped, worstquality, low quality, normal quality, jpegartifacts, signature, watermark, username, blurry, bad feet, cropped, poorly drawn hands, poorly drawn face, mutation, deformed, worst quality, low quality, normal quality, jpeg artifacts, signature, watermark, extra fingers, fewer digits, extra limbs, extra arms,extra legs, malformed limbs, fused fingers, too many fingers, long neck, cross-eyed,mutated hands, polar lowres, bad body, bad proportions, gross proportions, text, error, missing fingers, missing arms, missing legs, extra digit, extra arms, extra leg, extra foot, ((repeating hair))