Forcing a reference photo for Hyper Realism

I’m curious how the model chooses which photo to reference strongest in created photos with Hyper Realism. There obviously is one, since things like clothes, hair, and location will resemble a particular uploaded photo if no prompt is given to change those attributes. It seems to be randomly chosen, as multiple models created with largely the same images will turn out wildly different, some much better than others based on the reference photo chosen. For example, if it decides to use primarily a close selfie photo, generated photos designed to be full body or on a longer focal lens will have low resemblance and look odd, and vice versa. And yet it will stick with that same reference photo even if you prompt with attributes clearly apparent in other uploaded photos. Confusingly, the reference photo will sometimes change randomly hours or days later, often to a worse photo, and no matter what you prompt you can’t get it to change back. Additionally, the primary reference photo is DIFFERENT if creating a photo with multiple models, and that reference photo is also persistent in all photos with multiple models.

I’m sure you already know all this and specifically how it works, so I thought I’d ask to see if you know of a way to force the model to default to a particular reference photo chosen, either per model or per photo, instead of relying on random chance that it picks a decent one and that it won’t randomly change later. Either with a prompt (eg: “use photo in the forest as reference) or perhaps a certain image upload order, or ideally a “model edit” feature to allow for that customization. Thanks for reading!