"Create a Secret Garden inspired afternoon tea picnic basket menu with these items: a Secret Garden inspired layer cake, crumpets, baked potatoes, a fried egg feast, seed cake, fruit jams, and a Secret Garden inspired drink. Make it cohesive, elegant, picnic-friendly, and themed around a whimsical secret garden. Include complete recipes for each item with imperial units, and ensure the drink is non-alcoholic unless otherwise specified."