I actually wrote Tharg about this t'other week.
Rowan seems to be a pretty good character, but is she the star of a thrilling new series of adventures that will run for many years and collected editions, or is she, as she appears, the star of a one-off serial?
I'd like Samantha back, of course, but what I'd like most is a lead character who's neither a long-legged sexpot like Durham Red nor a female version of an established male character, like Samantha, Rafe, Inaba, Anderson, Venus Bluegenes, etc. Lilly Mackenzie certainly fits the bill, but as she's creator-owned, it limits what Tharg can do with her, I think.