Actually, I think Roxo would look better on your coloring.
I agree it'll be best for NWs, due to the cool brown undertone, but not every fair NW is going to have the same flattering results, based on other factors, like eye color, hair, etc. It's not an easy, universal red, between the color and the texture. It'll look great on certain folks, but I don't think it's something worth paying extra on evilbay for, that's for sure.
If you like to rock browns, then Roxo will be more up your alley, but from your photos, I honestly could see it going either way for you. Just a thought, considering it's sold out and might be a PITA to get without overpaying. There will be other similar shades or a repromote down the road, I'd bet money on that.