You made this?!? Holy crap I did not know that! I really enjoyed the Shira Calpurnia omnibus. I didn't realise Games Workshop commissions other artists before, probably cause they don't like to publicise anything but themselves...
I like it very much. It has the right kind of "used" look that fits nicely in the setting of 40k! It always strikes me as strange that all those soldiers have polished plate armor at all times doesnt make sense. Looks awesome!
Basicly shes the state police in the Imperium of Man, and deals with inner corruption, heresy and treasons, which puts her in some of the most complex webs of intrigue. Its as i can go without going into spoilers. Hope it helps.
And she is a strong character with a good arc through three books. It's refreshing reading a book with a female lead that isn't "herp derp I need men to do everything for me because I am weak and don't know what to do hurr".