Shadow, I am not as fair as you are - I'm NW20/25 - and Wulong really doesn't give me any color, it just warms up my skin. I went back and used a fluffy Hakuhodo to apply more (I can't remember which Hakuhodo - they don't put the numbers on the brushes) and I really liked the effect - but again, it's undetectable. I don't have anything quite like it.
Interestingly enough, my SA also said that Mythic, which is 'whiter' and has more pink in it, would look great on me. I would tend to agree (and it IS available in refills for $55, Wulong is not - thank you Anitacska!). I haven't used it yet but plan to tomorrow, and more often than Wulong since it is perm. It is actually a color combo that I would gravitate to. But all that said, I don't think Wulong would be dark on you at all. The little tan facets are not at all dark (I think Temptalia's photo is pretty accurate) and you really don't see 'color' at all on your face.
$170 is a lot to shell out - I'm still a bit numb from the experience - but if I were you, I'd probably see how I like Voyage (is that just the compact designation, or is it a color?) since you see it before you buy it..........I think if I had not had the opportunity to see it first, I might not have splurged on Wulong.