Soooo. I tried to do new decals on Derpia and they didn't work out well, either. I got frustrated and just did what I probably should have done from jump. Here she is with her painted eyes.
I think either way, you just have to be patient and take the time to do it right... my first time trying to paint eyes turned out kind of weird-looking >_<
I have so many dolls that I can't fit all their names in my signature anymore. @__@