No no, this model I painted it. I saw the last finish unicorn of Kamiya, and looked like it's in sick - -, then I just follow the basic structure, those last steps I do it myself (and when I saw a picture of a Nightmare in Hero game, I try to paint). I want to say that, I fold those models as types as I like (I will not follow the instruction to the last)
For examble: This Hermit Crab (Brian Chan), I fill a little paper at the eyes. I don't care if someone say that what I have done is not Origami. I do it just because I think it look better at least with me and with this model (that I fold)

Back to the Nightmare

sorry: May be that model can be real colour change. Unfortunately I fold this model with 1 colour paper so I didn't recognize that - -, and with a promise I will not fold any unicorn => I have no chance to try the colour change.