Oh my, yellow is such a pain to work with! I've made a 2 foot tall Pikachu sculpture once, from a wire base covered with papier maché, and it was so annoying to make him yellow -_- I had to add so many layers, so I can relate to you here.Still, I think your Dittochu is adorable! I'm particularly a fan of Ditto transformed in any Pokémon(used to love some TCG cards from the EX-series that featured a bunch of Pokémon done in modelling clay with Ditto's face, haha)