You say you saw the production process in Behance? Could you give us a link please?
I'd say someone has put a fair bit of work into these. Even if some of it was done 'in camera' rather than composited and illustrated with Photoshop, it would still have taken some time to get the grapes to adhere to the bottle shapes. I'd be interested in seeing the background to this so, so I'd appreciate that link. I'll happily help you after that.