For the Fruit Gelatin:
In a plastic bowl, soften the gelatin and 2/3 cup sparkling wine by microwaving for 5 minutes in short increments and stirring until gelatin dissolves.
In a saucepan, combine sugar and 2/3 cup sparkling wine; stir frequently and cook until sugar dissolves, then remove from heat.
Add the gelatin mixture, lemon juice, and the rest of the sparkling wine to the saucepan. Stir well to decrease the foam.
Using 2 oz. glasses, place 7 – 9 individual berries in each glass; fill with the wine gelatin; chill for several hours until gelatin is firm.
For the Whipped Cream (Optional):
In a chilled bowl, beat the cream cheese on medium to high for about 2 – 3 minutes, until cream cheese is smooth and free of lumps, scraping down the sides of the bowl as you go.
Slowly drizzle in the heavy whipping cream and continue beating until the cream cheese resembles a liquid mixture; whip until soft peaks form.
Add the powdered sugar and vanilla and continue to whip until stiff peaks form.
Using a star tip and piping bag, pipe a rosette on each gelatin and decorate as desired, up to a couple of hours before serving.