This does not work it looks nothing like the picture, the drink is much redder in colour and is not subtle in anyway, I think the recipe needs checking and also is this the correct picture!
The cocktail in the photo was made with homemade 2:1 pomegranate syrup rather than commercial grenadine (so less colour) and was shaken rather than stirred (so more chlorophyll from the mint). I now prefer to stir. I've added original recipes from Craddock and Embury for reference.