While it doesn't rule out the profile being a fake, my first thought would probably be that she has no interest in having you as a customer.
Some ladies probably find it easier to just not reply to people they don't want to see, rather than say "No thanks" and possibly get more messages from the punter which they will perceive as wasting their time.
The usual reasons for it being a fake, such as a private gallery or a webcammer don't apply in this case.