Add water and gelatin to a small mixing bowl and mix using a fork until well combined. Set aside to bloom for 5 minutes before microwaving for 30 seconds.
Add the puree back to the food processor along with the pumpkin spice, powdered sugar, cream cheese, vanilla extract and thickened cream, process until smooth. Make sure you stop and scrape down the bowl at least once.
Add the melted gelatin and process until smooth and well combine. Split the mixture into 4 bowls.
Add 3 drops of orange food gel into one bowl and mix using a spoon until evenly coloured. Colour the next bowl with 2 drops orange food gel and repeat. Colour the third bowl with 1 drop orange food gel.
Pour the darkest shade of orange cheesecake into the pan with the crust. Chill for 20 minutes and allow to set. Add the second shade of orange cheesecake and repeat with the remaining cheesecake filling allowing each to set before adding the next layer.