The results are in and the 2012 Debut Author Challenge Cover Wars winner for June is E.J. Swift's Osiris (The Osiris Project 1) with 57% of the votes cast. The winning cover was created by Sparth.
The final results:
Thank you to everyone who voted, Tweeted, and participated. The 2012 Debut Author Challenge Cover Wars will continue in July with voting on the July debut covers (of which there are quite a few).