I haven't seen her in quite a long time! Great work!
Even though I've known about your Saiko for a long time, I can't help but also think of Saeko from HotD as well. Both are Samurai (While not officially, Saeko certainly fits the role of one), they have similar features (similar hair style/color, body types, etc.), and are both are quite sexy ^_^
Fun style! When I like to shrink my character's proportions for cuteness, I like to make hands/feet bigger to make it work better, so it's not just the head. I've seen other artists exaggerate other parts to go with the superdeformity, like hips/breasts, just to make it all "pop".