“No-one else’s artwork is allowed on the walls here,” says Jennifer Rock, aka the Skin Nerd, with a fond laugh as she shows off the beautiful black-and-white pencil drawings of landmark Irish buildings by her fiancée Jill Deering hanging on the walls of their newly renovated home in Rush, Co Dublin. There also colourful artworks created by Jill and her business partner Gillian Henderson of Jill & Gill.