Comic Cover - Caelum Cew - Prologue

I'm beginning work on a new comic for a competition I'm hoping to enter. To start getting some ideas going, I thought it might be nice to put together a good cover, just to try and nail the mood I'm going for.

I'm going for a bit of an action thriller, though with a bit of a horror vibe. I can't exactly say my main character will be the 'good guy', despite her pastel motif.