I agree the second review is saying too little but I don't think it is a fake review or reviewer.
- People who have good English would write more in a fake positive review then just one line.
- The escort that he left the positive review for, has no negative or rated reviews.
- First review has been confirmed by the escort.
- The guy didn't leave a review in a while, so his punting behaviour matches the punting of the average client: once every few months.
Of course, IP checks might reveal something more but without those, as far as I can see, there is nothing suspiciously going on here.