These R VERY retouched!!! Silo'd, wash-out color, rope, flowers, skin, hair, lips, clothing, eyes. hands, bags... safer to ask where
PS wasn't used!!! U may actually find a pixel!
I wouldn't doubt the quality much, U C annomalies in these web-palate thumbnails but The real file is generally an oversized, overezed 1 gigish+ piece of over scrutinized 4C poster or even billboard monster with at least 40 layers (some of mine are well over 100).
For clients like this I've spent more than 60 hours per "composite image", I've incorporated more than 20 separate files at times, plus various revisions and versions.
This type of work is usually controlled at ad agency level, either in-house or farmed out to printer/pre-press shop. Client usually pays $300 per well padded hour. I've done plenty of these freelance at agencies and for shops. I get between $80 & $150 per HR depending on client, quantity...