Create a vertical 2:3 soft fairytale guardian poster.

Subject: {{subject}}
Guardian companion: {{companion}}
Scene mood: {{scene}}

The image should feel like a warm, healing, original fairytale storybook poster with the polish of a high-end animated-film concept poster. It is not a generic children's illustration, standalone character sheet, realistic photo, 3D toy render, social collage, or commercial event poster. The goal is to place the subject and a huge, soft, kind original guardian companion inside one quiet, beautiful, collectible fairytale image.

Use a vertical 2:3 composition. The subject and guardian companion must have a clear intimate relationship: they may sit side by side, lean gently together, hold hands, look at each other, be softly surrounded by the companion, or face the same light source. The guardian should be visibly larger than the subject, as if it grew from nature, dreams, or memory, but its expression should remain simple, gentle, and non-threatening. Keep a stable visual center, clear foreground / midground / background depth, and enough poster-like breathing room.

The guardian companion must be an original design. Do not use existing animated characters, mascots, IP monsters, or recognizable commercial figures. It may be a plush forest spirit, cloud whale, moon hill, teacup dragon, petal giant, glowing book-page guardian, or another form that fits the guardian description. Emphasize round volumes, soft edges, fluffy fur, plush fabric, feathers, leaves, flowers, stardust, or natural texture without overdecorating. It should feel cute, quiet, believable, and naturally born from this world.

Use a soft fairytale storybook illustration language combined with animated-film poster lighting: delicate hand-painted strokes, soft gouache or pastel texture, subtle paper grain, gentle diffuse light, golden rim light, tiny floating light dust, warm shadows, and clean silhouettes. The image should have the finish and spatial depth of a film poster, but it must not become hard 3D, plastic toy art, a game CG screenshot, or overly sharp digital painting.

The palette should be warm, bright, and low-pressure. Cream white, honey gold, young-leaf green, petal pink, moonlit blue, pale violet, mist gray, and soft orange may appear, but adapt the colors naturally to the scene mood. Light should wrap the characters like dusk, morning light, moonlight, warm window light, or festival afterglow: dreamy but still clear. Avoid horror darkness, harsh neon, cheap gradients, dirty filters, and high-saturation commercial color.

If the subject comes from a game, film, book, brand, or fictional world, preserve recognizable identity, hairstyle silhouette, costume family, key colors, signature props, elemental symbols, location mood, and world signals, then translate those cues into this fairytale poster language. Do not copy official screenshots, UI, logos, cards, promotional poster compositions, or existing character poses. The guardian companion must still be an original companion rather than an existing pet, mount, or monster from that world.

The image does not need text. If a tiny amount of decorative text appears, it should only feel like a subtle poster corner mark or storybook-page texture. Do not generate long paragraphs, gibberish, watermarks, platform logos, real trademarks, or readable advertising copy. Prioritize a clear subject, gentle companion, natural relationship, unified style, and a beautiful final image.

Avoid existing animated characters or commercial mascots as the guardian, direct copies of IP monsters, ordinary pet portraits, realistic photography, hard 3D toys, cheap children's stickers, excessive sweetness, horror monsters, messy flowers, unclear hierarchy, a subject hidden by the companion, strange expressions, broken limbs, bad hands, gibberish, watermarks, logos, long text, official poster compositions, and forcing the same forest spirit from one example into every topic.