Say what to keep
Naming something you want preserved is treated as an instruction, not a suggestion.
In your words
Presets cover the common cases. When yours is not common, describe it: "keep the fireplace, lose the carpet, dark green walls, brass fittings".

Naming something you want preserved is treated as an instruction, not a suggestion.
No prompt syntax to learn, no weights, no negative prompts. It reads as English.
Follow up with "warmer" or "fewer plants" and the previous result is adjusted rather than thrown away.