Ruby Slippers is a beautiful raspberry polish with at medium strong holo effect. It leans a bit to pink, but it is still more red than pink. The photos show the holo a bit more blue than it is. Yes, there is blue in it, but I would say that the red and pink hues are more dominant irl.
Doesn't matter, it is a stunning nail polish! I think I must wear it more often.
Of course the formula is A+, easy to apply and opaque in two coats.