Mickey & Minnie with presents

Isaac's mom wanted something similar to what I had done before with light blue background and clouds. She suggested to have presents to go with both Ms and have 2D birthday wishes placed on top of cake. This cake is 10" round cake. To make the Mickey & Minnie faces like this (especially the muzzle part) I need hours to complete. One of my friend suggested, simplified it will surely cut short the moulding time....but I really wish to make it as closed as possible (challenging myself, haha).