There are three (yes three) different versions of the Stephen Hickman artwork circulating as cover art for the hardcover, paperback and ebook editions of this title.
The first 'pre-release' version appears to have been supplied to Amazon and then percolated around the net quite extensively. It can be identified by the series of radiating lines surrounding the figures, as well as minor changes in the woman's hair, hand, and arm positions.
The second version, with a more foggy highlight surrounding the two figures and more detail over all was used on both the Advanced Reader Copy (ARC) TP edition and on the Hardcover edition. This version was also used on the initial ebook release.
The third version, re-clothes the fighting female figure in normal street-clothes (as per the text) and further adjusts the imagery slightly. This revision was used on the initial mass market paperback release. This version was added to the webscription website as the cover art for the book for later ebook downloads and is what appears there to this day.
Please make sure your verified records of this title link to the correct version of the artwork.
First Edition, First Printing with full number line 10 to 1.