Dissolve Jell-O in boiling water in a serving bowl until fully dissolved.
Add cold water and stir to combine.
Place bowl in refrigerator and refrigerate mixture approximately 15 minutes.
Add pudding mix and orange extract and whisk into Jell-O mixture until pudding mix is completely dissolved.
Refrigerate mixture an additional 20 minutes.
Add softened cream cheese, whipped topping, ¾ of the marshmallows, ¾ of the mandarin orange segments and all but two tablespoons of the diced pecans.
Refrigerate mixture for 2 hours.
Garnish fluff with remaining miniature marshmallows, mandarin orange segments, diced pecans and maraschino cherries.
Serve fluff with a large serving spoon.
Or, scoop fluff into individual parfait glasses and top individual servings with remaining marshmallows, mandarin orange segments and diced pecans.
Top each individual serving with a maraschino cherry for garnish.