Regardless, of the image quality, lighting, shadows, and other variables in production value. Also, disregarding the level of beauty of the escort in the photos. What kind of photos do you prefer?
Lingerie/bikini = no nudity
topless = semi-nude
completely naked = nude/implied nude (playboy style)
Hardcore = showing genitalia (penthouse style)
No preference= its irrelevant to me
all of the above = a few photos in each category