MidJourney: Can I use multiple --no parameters
From Art Mechanicum
Since it comes up occasionally, here's a current write up of multiple --no parameters. While not conclusive (and I encourage you to update with your own findings), the below suggests that it's better to use only a single "--no" parameter (and potentially additional ones don't get considered). For including multiple items, either list them in your --no parameter (i.e. "--no cats, kayaks") or switch to multi-prompt with negative values for items to avoid.
As it isn't known how multiple prompts combine, it's possible the combination is better at cancelling some pieces than others.
What is obvious is that doing these in a single "--no" is substantially stronger in removing the cat and kayak from the image.