Get postcard art that leaves room for the mailing panel

About this exercise

You're mailing "Just Sold" postcards and want the front art from Gemini. Get Claude to write one paste-ready prompt, plain text, under 130 words: a prompt paragraph plus a last line starting "Avoid:". It must say landscape 3:2, keep the right third plain for the address panel, allow only the text "JUST SOLD", show a watercolor house described exactly as the real one, and name both hex colors.

Common mistakes when you ask AI for this

• Generic house. The AI draws any pretty house, which neighbors will notice isn't the one sold. Try: Describe it: "one-story sage green craftsman, red door, tapered porch columns."
• Too much text. The AI adds the offers and phone number, which image tools garble. Try: Add: "The only text is JUST SOLD."
• Forgetting the mail panel. Art across the whole card leaves no room for the address. Try: Add: "Landscape 3:2, right third plain."
• No colors, no exclusions. The AI skips brand colors and the house number warning. Try: Add: "#0F4C5C and #E3A72F. Avoid: house number, people, extra text."
• Write-up instead of prompt. The AI adds headings and tips. Try: Add: "Output only the prompt and the Avoid line."

What a strong prompt includes

• Sets the shape
• Leaves the address area
• Limits the text
• Describes the real house
• Adds an Avoid line

Practice this now ↑

Related exercises

• Accept the buyer's counteroffer on three stated conditions (Sales AI · Sales and customer success)
• Accrue goods received but not invoiced at PO price (Finance AI · Accountants)
• Adapt one ad image to 3 sizes with Midjourney (Image & Video AI · Marketing and content)
• Add dark mode by overriding your existing CSS variables (Coding AI · Software developers)
• Add input checks to your number guessing game (Coding AI · High school students)