Combine the lemon juice, sugar, St-Germain, honey, spirit, and tea in a non-reactive bowl and stir until the sugar is completely dissolved. Add the prosecco and stir to combine. Cover and refrigerate until chilled, about 1 hour. Pour into a decorative bowl or pitcher. Garnish with orange or lemon slices and fresh strawberries, if desired. Serve in champagne flutes, wine glasses or punch cups.