You can take a picture of a cock in many different ways: some people do it beautifully, some don’t. It can be a beautiful play if you do it properly.
Take a photo camera or a smart phone with a good camera, set up lighting that will illuminate your penis beautifully. Show how veins or slightly open foreskin can be spectacular. You don’t have to photograph an erect penis. It is as beautiful when it is flaccid.
Take a lot of shots, and then pick the best ones. You will show your partner how you see him. And in this nonconventional way you will again express your love.