No Bake Turtle Lush!

Ingredients
3 cups Oreo crumbs
8 tablespoons unsalted butter melted
1 8-ounce package of cream cheese, softened
1/2 cup powdered sugar
16 ounces of thawed whipped topping divided
1 5.9-ounce box of instant chocolate pudding mix
3 cups milk cold
1 cup of chopped pecans divided
1/2 cup caramel sauce
1/4 cup chocolate syrup
Instructions