This is an enchanting anime-style image featuring a young girl submerged in an underwater scene filled with glowing jellyfish. The girl is in the center of the composition, standing with her back to the viewer, creating a sense of intrigue and mystery. Her position and gaze suggest she is observing or contemplating the aquatic wonders around her.  The girl has shoulder-length hair with slightly wavy ends that give off a sense of gentle movement, perhaps suggesting the influence of a soft underwater current. She's wearing a knee-length light blue dress that fans out beautifully into a translucent, tulle-like fabric towards the bottom, resembling the ethereal quality of a jellyfish's body. Her sleeves are short, and the dress has a simple, round neckline. The girl's posture is demure and introspective, with her arms gently pressed against her body and her head slightly tilted to the side.  She wears white knee-high socks and dark navy, almost black, ankle boots, which provide a striking contrast to the light tones of her dress and the scene. This contrast grounds her silhouette and draws attention to her amidst the surrounding light.  The underwater scene is vividly rendered in shades of blue, ranging from deep velvety ocean tones to bright, iridescent cyan, creating a captivating, otherworldly atmosphere. Bioluminescent jellyfish float around her, their bodies glowing with an inner light that illuminates their delicate, flowing tentacles. They vary in size and are dispersed throughout the environment, giving the impression of a serene and magical jellyfish forest.  The water itself seems to be alive with light, speckled with myriad tiny bubbles and gentle light particles that suggest the jellyfish are not the only sources of luminosity in this submerged realm. The background fades into a deep oceanic blue, and a couple of other marine creatures, including a fish with wide, curious eyes, are subtly visible, adding life and depth to the underwater tableau.  Overall, the illustration conveys a sense of tranquility, wonder, and the profound beauty of an underwater dreamscape, inviting the viewer to ponder the quiet mysteries of the deep sea as experienced through the eyes of the girl amidst the jellyfish.