I stamped the flower image three times:
I just painted on the adhesive that comes in the Mona Lisa foil kit, let it dry & stuck the foil on. Easy peasy! (By the by, I use the imitation silver leaf foil. It's more affordable.)
The "happy birthday" is a white SRM sticker stuck onto black cardstock.
the envelope (and the inside of the card) is here:
Hope you're having a scrumptious week! ox