Hi Iain,
Thanks a lot for the useful comments . She's been to the hairdresser again and I gave her a bit more of a forehead. I think I like this version best. I also worked on her right arm. While this leads to an improvement, the result is still not as good as on your photoshopped picture. The problem lies with the underlying wire armature and a real fix would force me to re-sculpt her arm from scratch, something I'm not overly keen on.
Scalewise, I agree 35mm is not standard and limits compatibility with available miniature ranges. However, 35mm is really the scale I like. To me 35mm minis look better than 28mm on the tabletop whilst still being playable for skirmish games. Finally, I find 28mm realistically proportioned minis (e.g. Infinity) too fiddly to paint and game with.