These could have been taken the same month. I studied photography too and I'm baffled by people's confusion about differences in photos that are taken indoors vs outdoors, by different photographers who use various techniques etc.
A lot of people would actually find the outdoors photo sexier because it's more raw, it's less staged, you're seeing this woman in a much more casual situation.
Obviously one of the photos is part of a boudoir shoot and it's a bit more retouched. That's the norm for professional escort photos.