Generate a vertical 3:4 artistic poster; it must be a finished poster with typography already completed.

The theme is [Fill in Theme]. The overall style is not ordinary ocean photography or ordinary fish illustrations, but a conceptual poster with strong emotional temperament, a sense of dreams, atmosphere, and a sense of design.

[Core Visuals]
The image features [schools of fish / jellyfish / tropical fish / glowing fish / translucent marine life / floating objects / sea surface light and shadow] as the main subject, but they must undergo significant modification. Do not replicate realistically; transform them into visuals with more visual impact and artistic sense.
Can include:
Hazy mist, gradient seawater, floating particles, soft focus, halo, slight grain, blurred edges, dreamcore atmosphere, low-contrast background, ethereal negative space, floating composition, poetic visual narrative.

[Composition Requirements]
The image must have a clear visual focus. You can use:
Large areas of negative space, offset composition, floating layout, poster-like cropping, distinct top and bottom layers, rhythmic density of the subject, local magnification, contrast between near and far, single-side title typography, corner information typography.
Do not make it like an ordinary wallpaper; make it like a real design poster.

[Color and Atmosphere]
The overall color scheme revolves around [Fill in Main Color, e.g., coral orange, mist pink, sea salt blue, deep sea black, neon purple, grey-green, amber gold].
The tones should be unified, soft, and have a sense of air. It can have a bit of film grain, matte texture, and a slight printing feel.
Atmosphere keywords: quiet, ethereal, sentimental, healing, blurred, dreamy, surreal, poetic.

[Typography]
Add complete Chinese typography to the image.
The main title says: [Fill in Chinese Main Title]
The subtitle says: [Fill in a short copy sentence]
Auxiliary small text says:
[Fill in small text 1]
[Fill in small text 2]
[Fill in small text 3]

Typography should be restrained and high-end. No advertising feel, no clutter, no long manual-style text.
Can be paired with a small amount of English small text as auxiliary information, but primarily in Chinese.
No real brand names, no watermarks, no garbled text, no expired dates.
If a date is needed, do not automatically write the year; leave it blank or weaken it.

[Visual Texture]
High-end artistic poster texture, soft focus photography feel, dreamy ocean atmosphere, with printing grain and modern design sense.
The subject should be clear but edges can be softened. Avoid clutter, deformity, low quality, and cheap special effects.

Output as: A complete finished poster, clear Chinese, typography finished.