Gilding and classic paper decoupage
Soak print in water. Why? Paper expands under the influence of water, so soaking prevents wrinkles during gluing and drying.
dry with paper towels
Apply decoupage glue on bottle
and apply glue on you print (on top of the picture as it will be glued on the back side of the bottle)
Transfer print on the bottle using piece of foil (for example punched pocket) and remove any air bubbles
apply gilding glue on the back of the bottle and partially on front
Let dry for half of hour and apply silver or gold flakes.