At first prepare pudding for the trifle for that you need to mix pudding mix in milk and chill in fridge to set for at least 30 min.
Add red food color to cherries and mix well.
Now take a serving bowl and make layer of marble cake slices, cover the cake with cherries and then spread prepared chocolate pudding mixture. Repeat this pattern of layer again and in the end top with whipped cream and few cherries. Keep the bowl in fridge to chill.