Ran a POD shop for a while before I started packaging Midjourney prompts commercially. Biggest mistake I see people make: they prompt for a "cool image" instead of a "sellable product."

A few things that actually move units:

• Negative space matters more than detail. Buyers crop and print onto mugs, shirts, canvases. If your prompt fills every inch with detail, it dies at the edges. Add explicit framing/margin language to your prompt.

• Style consistency > one-off wins. A single banger image doesn't build a shop. A repeatable prompt formula that reliably nails one aesthetic (e.g. "muted boho line art" or "cyberpunk neon skyline") lets you flood a niche fast.

• Commercial license is the actual bottleneck, not creativity. Midjourney's own terms + platform terms (Etsy, Redbubble, etc.) trip up more sellers than bad prompts do. Know what you can resell before you scale a style.

• Resolution upsampling is non-negotiable for wall art and large-format prints — most default outputs won't hold up above 16x20.

If you're building a POD or wall art brand right now, categorize your prompts by product surface, not by subject. A prompt built for a phone case behaves completely differently than one built for a canvas print.

Happy to answer questions on this if anyone's stuck on their prompt-to-product pipeline.