「毎日の挑戦」用My Gemを使って3種類のアートワーク画像を生成したいと思います。
CDアートワーク
- モダン・ジャズ / ミニマリズム
洗練されたタイポグラフィと幾何学的な抽象画を組み合わせた、ブルーノート・レコードのような現代的デザイン。
Prompt:
CD cover artwork, Modern Jazz aesthetic, minimalist geometric abstraction, overlapping translucent circles and sharp lines, sophisticated color palette of deep navy, ochre, and charcoal grey. High-contrast Swiss style typography, matte paper texture, grainy film overlay, professional graphic design, 8k resolution, clean composition.
- シネマティック・エレクトロニカ / 浮遊感
幻想的な風景と光の粒子を多用した、アンビエントやポストロック向けのビジュアル。
Prompt:
Album cover art, Cinematic Electronica, a solitary figure standing on a mirror-like salt flat at twilight, bioluminescent particles floating in the air, long exposure photography style. Ethereal glowing horizon, nebula-like clouds in the sky, soft bokeh, dreamlike atmosphere, teal and amber lighting, hyper-realistic, highly detailed.
- 和風モダン / 伝統と革新
日本の伝統的な美意識と現代的なデジタルアートを融合させたスタイル。
Prompt:
CD jacket illustration, Japanese Neo-traditional style, a stylized crane flying across a golden moon, intricate patterns inspired by Kimono textiles and Ukiyo-e, bold Sumi-e ink splashes. Integrated with glitch art effects and neon accents (electric blue and magenta), gold leaf textures, high contrast, sharp edges, 2D vector art combined with realistic textures.
- 90s オルタナティブ・ロック / ローファイ
ザラついた質感と日常的な風景を切り取った、ノスタルジックでエモーショナルなスタイル。
Prompt:
Music album artwork, 90s Alternative Rock aesthetic, low-fidelity photography, a blurred view from a moving car window at sunset, power lines cutting across a dusty orange sky. Overexposed highlights, heavy film grain, Polaroid frame effect, handwritten lyrics scratched into the corner, nostalgic and raw emotion, muted vintage colors, grunge texture.
ミステリー小説のアートワーク
A cinematic book cover for a Japanese mystery novel. A majestic, ivy-covered Victorian mansion isolated in a heavy blizzard at night. A single warm light glows from a high window. In the foreground, a set of footprints in the deep snow abruptly stops in the middle of the frame. High contrast, dark moody atmosphere, deep blues and stark whites. Photorealistic, 8k resolution, mysterious and suspenseful tone.
Modern crime suspense book artwork. A rain-slicked dark alleyway in Shinjuku at midnight. Blurred neon signs in red and blue reflecting in puddles. A silhouette of a person in a trench coat walking away into the shadows, holding a glowing smartphone. Gritty texture, film noir aesthetic, cinematic lighting, sharp focus on raindrops. Digital art style, moody and intense.
Surrealist mystery novel cover art. A cracked antique hand mirror lying on a dark velvet tablecloth. Inside the shattered glass, a different room is reflected—a dusty library with a secret door slightly ajar. A single red rose with falling petals sits beside the mirror. Eerie, dreamlike atmosphere, soft golden hour lighting mixed with cold shadows. Detailed oil painting style, evocative and psychological.
Retro Japanese mystery illustration. A quiet “Kissaten” (traditional coffee shop) during sunset in the 1950s. Long shadows stretching across wooden floorboards. On a marble table sits a steaming cup of coffee, an old fountain pen, and a crumpled telegram. Warm amber lighting, nostalgic yet unsettling atmosphere. Ukiyo-e influenced modern digital illustration, clean lines, rich textures.
RPGのアートワーク
- 王道ファンタジー（コンセプトアート・風景）
広大な世界観を感じさせる、RPGのパッケージやロード画面に使用されるような壮大なアートワーク。
プロンプト:
Epic fantasy RPG concept art, a breathtaking view of a floating crystal castle above a lush green valley, waterfalls cascading into the clouds, a small party of adventurers (warrior, mage, archer) standing on a cliff edge in the foreground looking at the horizon, vibrant lighting, cinematic composition, highly detailed, digital painting style, masterpiece.
- ダークファンタジー（キャラクター・ボス）
『ダークソウル』や『エルデンリング』のような、重厚で退廃的な雰囲気のボス戦のアートワーク。
プロンプト:
Dark fantasy RPG illustration, a towering undead knight in rusted ornate armor, glowing blue ethereal flames leaking from the visor, holding a massive shattered greatsword, standing in a rainy gothic cathedral ruin, dramatic chiaroscuro lighting, moody atmosphere, intricate details, oil painting texture, hyper-realistic, 8k resolution.
- サイバーパンク/SF RPG（キャラクター・ポートレート）
近未来の都市を舞台にしたRPGの、スタイリッシュなキャラクターセレクト画面風のアートワーク。
プロンプト:
Cyberpunk Sci-Fi RPG character portrait, a female mercenary with glowing neon cybernetic enhancements, wearing high-tech tactical gear and a holographic visor, background of a rainy neon-lit futuristic Tokyo street, shallow depth of field, sharp focus, cel-shaded anime style mixed with realistic lighting, vibrant purple and teal color palette.
- レトロ・ドット絵（ゲーム画面）
スーパーファミコン時代の名作RPGを彷彿とさせる、緻密な2Dピクセルアート。
プロンプト:
Retro 16-bit JRPG pixel art, a cozy medieval tavern interior, adventurers sitting around a wooden table with mugs of ale, a fireplace glowing warmly in the corner, NPCs moving in the background, isometric perspective, high-quality pixel art, vibrant colors, nostalgic atmosphere, Super Nintendo aesthetic.
アートワーク
今回使用したプロンプトを使って、ChatGPT Images2.0やGemini3 Nano banana 2で画像生成すると、もっとテキストが入った画像が生成されます。それで、CDジャケットや本の表紙のイメージが強くなります。SeaArt版ではテキストが少なくなり、一つの提案のように感じられるような画像が多くなります。
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