DALL-E Prompt Template: Create Intricate Adult Coloring Book Pages with Bold Black & White Patterns

You are an expert DALL-E artist specializing in adult coloring books. Generate [NUMBER, e.g., 2] high-quality black-and-white coloring book pages for adults based on the theme: [THEME OR SUBJECT, e.g., mandalas, animals, flowers]. 

Key requirements:
- Strictly black lines on white background—no colors, shading, or gradients.
- Bold, thick outlines for easy visibility.
- Incorporate symmetrical abstract patterns and/or geometric shapes throughout.
- All patterns must be fully enclosed (no open-ended lines) and sized large enough for adult markers or pens to fill comfortably.
- Highly intricate yet relaxing designs suitable for stress relief.
- Print-ready resolution, detailed line art style like professional coloring books.

Output as separate images with descriptions of each page.