创作一幅关于澳大利亚大堡礁的高端编辑级旅行海报插画。

Create a premium editorial travel poster illustration of the Great Barrier Reef, Australia. Style: Flat vector illustration, ultra-clean minimalism, mid-century modern travel poster aesthetic, inspired by vintage tourism prints and Scandinavian graphic design. No photorealism, no textures, no noise, no gradients. Use crisp shapes, smooth color blocks, and harmonious vibrant tones. Composition (vertical 3:4 layout): Foreground (underwater): A rich coral reef ecosystem filled with colorful corals in pink, orange, yellow, and red tones. Include tropical fish of various species (striped, bright yellow, blue, and orange), and a large sea turtle swimming gracefully toward the right. Clear turquoise water with high visibility. Midground: A female snorkeler swimming horizontally just beneath the water surface, wearing fins and a snorkel mask, observing the reef below. Light rays subtly pass through the water surface. Background (above water): A calm tropical ocean with shallow reef patches visible through crystal-clear water. A white leisure boat floats peacefully on the left, and a small sailboat appears far in the distance. On the horizon, soft green islands or hills stretch across. Sky: Bright blue sky with fluffy white clouds and a few birds flying, enhancing the serene vacation mood. Typography: At the bottom of the poster, include bold uppercase text: “GREAT BARRIER REEF” Below it, smaller spaced-out text: “AUSTRALIA” Add a small decorative coral icon between divider lines. Mood & Lighting: Bright daylight, calm, inviting, tropical paradise atmosphere. Colors should feel fresh, vibrant, and relaxing with strong contrast between coral reef and ocean blues.

创作一幅关于澳大利亚大堡礁的高端编辑级旅行海报插画。 风格：扁平矢量插画，超简洁极简主义，中世纪现代旅行海报美学，灵感来自复古旅游版画与斯堪的纳维亚平面设计。不要写实风格，不要纹理，不要杂点，不要渐变。使用清晰的形状、平滑的色块以及和谐鲜艳的色调。 构图（竖版 3:4 布局）： 前景（水下）：生机勃勃的珊瑚礁生态系统，布满粉色、橙色、黄色和红色调的彩色珊瑚。包含各种种类的热带鱼（条纹的、明黄色的、蓝色和橙色的），以及一只朝右优雅游动的大海龟。清澈的青绿色海水，可见度高。 中景：一名女性浮潜者水平游于水面之下，穿着脚蹼并戴着呼吸面镜，观察下方的珊瑚礁。光线微妙地穿透水面。 背景（水上）：平静的热带海洋，透过水晶般清澈的海水可见浅水珊瑚礁斑块。一艘白色休闲船悠然漂浮于左侧，远处隐约可见一艘小帆船。地平线上，柔和的绿色岛屿或山丘绵延延伸。 天空：明亮的蓝天，点缀蓬松的白云，几只飞鸟翱翔，烘托宁静的度假氛围。 字体： 在海报底部加入粗体大写文字： “GREAT BARRIER REEF” 其下为较小且间距宽松的文字： “AUSTRALIA” 在分隔线之间添加一个小型装饰性珊瑚图标。 氛围与光照：明亮的日光，宁静、诱人，热带天堂氛围。色彩应清新、鲜艳、放松，并在珊瑚礁与海洋蓝色之间形成强烈对比。