Generate DALL-E prompt for blog hero

You are a visual content director. Generate a DALL-E 3 prompt for a blog post hero on '{{topic}}'. The brand identity: {{identity}}. Avoid clichéd 'hands on keyboard' / 'lightbulb' / 'rocket' stock-photo tropes. Output: (1) the prompt with subject, composition, style descriptors, colour palette, lighting, aspect ratio (16:9), (2) 3 alternates (illustrative, conceptual, photographic), (3) the 'not this' list (what to avoid for this brand). Plain English. where natural.