Hand painted cakes
These are 2-D images painted on the top of sides of the cakes. Hand paintings can be done on whipped cream, butter cream, chocolate, fondant, tiramisu or even mousse cakes.
This is a specialty unique to Yu's design - cute cartoon images usually yield best results.
Comparing to images printed on edible paper and then applied on cakes:
Hand painting can be applied on whipped cream; printed image can not
Hand painting offers highly customized image with higher contrast, cleaner lines, with less detail than printed sheets
Fondant work
Since delicate chiffon cakes can not support the weight of fondant coverings, fondant work with chiffon cakes are usually limited to a couple of flowers on the side.
However with chocolate, or buttercream cakes, fondant has its advantage of being extremely versatile and shows beautiful details.