Like the professional pictures, but as Anon says, not totally airbrushed to deceive. Butt in the air ones don't do it for me, but a bit of nudity is good, again as long as its not overdone. I suppose the reason is that if the escort has gone to the trouble and expense of having good pics taken,and then choosing the ones she/he likes of themselves, it gives the impression at least, that the service they offer wil be of the same level (not always true I know). One of the best profile pics I've seen were of (the newly departed) Jasmin, they just oozed style and sexiness.
Come in she said "I'll give you shelter from the storm "