Blend the digestive biscuits in a blender until they form a fine crumb which resembles wet sand.
Add the melted butter to the digestive biscuits and press in to a lined 8 inch baking tin. Place in the fridge to set for 30 minutes.
Meanwhile, in a bowl whip the cream to form soft peaks. In a separate bowl whip the cream cheese and icing sugar until it begins to loosen. Combine these two mixtures into one of the bowls.
In a food processor blitz one of the milk chocolate oranges in to small chocolate pieces.
Fold in the chocolate orange pieces and juice of half an orange into the cream cheese mixture.
Spoon the mixture on top of the base and place in the fridge for 30 minutes to set.
Decorate alternatively with the remaining dark and milk chocolate segments and a slice of orange.