What hair color should I go for? (Patreon)

So I've been working on Frida's sister, Hilde, for a couple of days. But I can't make up my mind considering her hair color. I'm going for a Nordic appearance, so it's either going to be red'ish or blond. But I'm going to leave that choice to you. Please see the attached images before making your choice. This is going to be a short poll, since I need to start working on her scenes soon. Vote quickly!