You hadn't read Finder yet? Clearly I have been remiss in my recommendations.

Her art starts out a little rough and gets much much better. By the time you hit the second volume of Sin-Eater she'll start getting into a much cleaner ink line style and soon she'll be drawing some of the most expressive faces with the most minimal lines I've seen. I LOVE her art. Sin-Eater is also kind of a busy story, and she gets much better at storytelling as she goes along too. Overall, Finder starts out well and gets fantastic.