Afternoon tea martini

Name: Afternoon tea martini
Ingredients: 1 1⁄2 oz Hayman's London Dry Gin; 1⁄2 oz Lemon juice; 1⁄2 oz Hayman's Sloe Gin; 1⁄3 oz Muyu Jasmine Verte liqueur; 1⁄6 oz Sugar syrup 'rich'