This is my favourite of the ones I've tried thus far. Female protag (the fact that she is a murderess is incidental :P). Mechanics are polished and well executed, the level design is good and the difficulty ramps well. Story unfolds well, and it all integrates into the source material fantastically. I'd love to see this expanded into a larger project.
I did have some technical issues - I had the game freeze up twice during hand washes, and having the checkpoints work automatically was good but also restrictive, as I missed some of the early game and wanted to replay it without the option (the game did randomly reset completely upon death in the second section once though). If you were able to iron this out, it'd be a perfect little experience.