BONUS Post #2 - Pajama Models
Some model shots I had the generator do while planning a future session.
My understanding of at least the diffusion model is that basically you're never going to individualize characters with specific traits, except by their innate associations. Anything you prompt sort of only applies to the scene overall. To get individualized things, you'd have to go for further tools than what a site like this offers for simple generation, refining image series and doing img2img variations and fixing.
This model testing not only gave me a good idea what Twilight and Fluttershy would generally look like, but it otherwise straight proved the point: on purpose I tried to get Twilight wearing green and Fluttershy in blue, and every time they never swapped pajama colors.
The very last image is a Draft version, done for prompt testing.