Chuyến Tàu Cầu Vồng

A vibrant, ultra-detailed 3D fantasy scene featuring a cute pastel-colored toy train traveling through a lush green valley between tall cliffs. The train is stylized like a candy-themed locomotive with smooth rounded shapes, glossy plastic textures, and bright pastel colors including pink, purple, blue, yellow, and mint green. The front of the train has a large circular headlight and candy-like decorations such as striped candy canes and heart-shaped accents.

Seated inside the train are adorable cartoon animals rendered in Pixar/Disney style with soft fur and expressive faces. Characters include:

* A smiling unicorn with a white body, pastel rainbow mane (pink, blue, purple), large sparkling eyes, and a spiral horn glowing slightly.
* A cute panda with black-and-white fur wearing a small colorful unicorn horn.
* A baby panda sitting beside it with similar features but smaller proportions.
* A cheerful orange fox with big eyes and soft fluffy fur.
* Another fox character at the back carriage with a playful expression.

All characters are positioned closely together inside the train, leaning slightly forward as if enjoying the ride.

The environment is a magical valley landscape:

* Rolling green hills and steep cliffs on both sides with soft sunlight illuminating the scene.
* A bright blue sky filled with fluffy white clouds.
* Two vivid rainbows arching across the sky, slightly glowing and adding magical sparkle particles.
* Depth perspective showing distant mountains fading softly into atmospheric haze.

Lighting is soft, warm, and cinematic with global illumination, soft shadows, and subtle bloom effects. Colors are highly saturated but harmonious, emphasizing a dreamy, joyful, childlike fantasy atmosphere.

Rendering style: ultra high detail, 3D animation, Pixar-quality, smooth shading, subsurface scattering on characters, high-resolution textures, depth of field, sharp focus on characters, slightly blurred background for depth.

Camera angle: slightly elevated front perspective focusing on the train and characters, with the valley and rainbows visible in the background.

--ar 2:3 --v 6 --style 4c --q 2 --hd --uplight