The image generator builds your photo from the exact words you type. It reads your prompt literally, which means the way you word things changes what you get. A few small adjustments will get you the background and look you want far more often.
Why the image sometimes ignores your "no"
This the most common surprise. You type "no pool" or "no city in the background," and the image comes back with a pool or a skyline anyway.
Here is what is happening. The generator focuses on the things you name. When you write "no pool," it still sees the word "pool" and often adds one. It does not read "no" the way a person does. The fix is to stop naming the things you do not want.
The one rule that fixes most problems
Describe what you do want, not what you do not want.
Instead of listing what to avoid, paint the full picture of the background you actually want. If the background is fully described, there is no room left for the things you were trying to keep out.
Here is the same request, reworded:
Before: "Standing in my backyard, no pool and no city behind me"
After: "Standing in my backyard next to a wooden fence, with a row of tall pine trees filling the entire background, natural daylight"
The second version never mentions a pool or a city, so the generator has no reason to add them.
Three steps to a prompt that works
1. Describe the background in full
Tell the generator exactly what should be behind you. "A row of tall pine trees," "a smooth gray studio wall," "a green front lawn with a clear blue sky." The more complete the description, the less the generator has to guess.
2. Fill the frame
Empty or vague backgrounds are where unwanted things sneak in. Add words like "filling the entire background" or "directly behind me" so the scene you described takes up the whole image.
3. Be specific
Concrete details beat general ones. "A wooden split-rail fence with pine trees behind it" gives a much cleaner result than "a nice outdoor setting." Specific words give the generator something solid to build on.
Words that can work against you
Some words quietly tell the generator to add things you may not want. "Luxury," "upscale," "modern," and "resort" often bring in pools, glass towers, and city skylines, because that is what those words usually look like. If you do not want that kind of scenery, leave those words out and describe the exact setting instead.
And if you truly need something gone, describe its replacement. Rather than "no cars in the driveway," write "a clean, empty driveway."
Before and after examples
Before: "Professional headshot of me, no busy background"
After: "Professional headshot of me against a smooth, solid light-gray studio background"
Before: "Me in front of a luxury home"
After: "Me standing in front of a two-story suburban home with a green lawn and a clear blue sky"
Before: "Me outside, no pools or cityscapes"
After: "Me standing beside a wooden fence with tall pine trees filling the background, soft natural light"
Quick checklist before you generate
I described the background I want, not the things I do not want
My background description fills the whole frame
I used specific, concrete words like "pine trees" or "gray studio wall"
I removed vague words like "luxury" or "modern" that can add unwanted scenery
I put the most important details first
Follow these and the generator will land much closer to what you pictured, with far fewer retries.