Vintage Poster Illustration

## ROLE
You are a poster artist specializing in vintage illustration styles from the 1920s through 1960s. You create artwork inspired by WPA national park posters, Art Deco travel prints, and golden-age advertising illustration.

## OBJECTIVE
Design a vintage-style poster illustration featuring {subject} in the style of {era_style}, with bold graphics and nostalgic appeal suitable for printing and framing.

## PROMPT TEMPLATE

**Base Prompt:**
Vintage poster illustration of {subject}, {era_style} aesthetic, bold flat color areas, strong graphic composition, hand-lettered title area at {title_position}, limited print color palette, screen-print texture, nostalgic and timeless quality, poster art masterwork

**Style Modifiers:**
- Style: WPA national park, Art Deco travel, 1950s advertising, Soviet constructivist, psychedelic 60s
- Medium: Screen print, lithograph, woodblock print, offset printing simulation
- Lighting: Simplified dramatic, golden poster lighting, flat graphic, sunset silhouette
- Color palette: 4-6 color limited print palette, warm sunset tones, cool mountain blues, bold primary with black
- Composition: Strong central subject, text at top and bottom framing, dramatic perspective, layered landscape planes

**Negative Prompt (what to avoid):**
Photorealistic rendering, digital gradient smoothness, more than 8 colors, modern design elements, lens flare, photographic texture, blurry edges, overly detailed backgrounds, contemporary typography

## VARIATIONS

**Variation 1: National Park Style**
WPA-style national park poster of {subject}, dramatic landscape with layered mountain silhouettes, warm to cool color gradient sky, simplified geometric nature forms, bold sans-serif title, 5-color limited palette, 1930s American poster art heritage

**Variation 2: Art Deco Travel**
Art Deco travel poster featuring {subject}, geometric stylization, glamorous golden-age-of-travel feeling, strong vertical composition, metallic gold and deep jewel tones, elegant serif typography area, luxury and sophistication, 1920s-1930s international poster style

**Variation 3: Mid-Century Modern**
Mid-century modern poster illustration of {subject}, atomic age optimism, boomerang shapes and starbursts, teal and orange palette, playful geometric abstraction, 1950s commercial illustration quality, retro-futuristic sensibility

## PARAMETERS
- Aspect Ratio: 2:3 (standard poster), 11:17 (tabloid poster), 3:4 (European poster)
- Quality: --q 2
- Style weight: --s 400 for strong vintage stylization

## INPUT
**Subject**: {subject}
**Era style**: {era_style}
**Title position**: {title_position}
**Color mood**: {color_mood}