HOW DO I GET DIFFRENT POEPLE IN THE STUDIO
For Ken - Once you have 4 hearts with Anna, you can invite Ken to the basement if you go the Anna Share Route.
There is supposed to be one more studio invite coming in 1.9 (to be confirmed who)
Supposedly you can also use the "Gallery 1.1.4 @Mr ModMan" mod to place characters in any location you wish, but never used it....
Besides that you will have to use Stable Diffusion/Photoshop and create your own