Mine did not turn out to be as pretty as their version. I have already figured out all of the mistakes I made and will try not to do them again, as this is a very tasty treat. I am sure it will taste even better when I master the appearance of it. So with that, next time I will:
1) Use 2 round cake pans instead of one round and one square
2) Make sure that the cakes are completely cooled before frosting
3) Double check the amounts of juice/oranges in each container
4) Use plain vanilla pudding. The pudding I had contained small chocolate chips...although I think it helped with the flavor a bit. Chocolate and orange were meant to be together.