That cover work is awful. Kind of like damien from the Omen. I love joking about this bands name. Oh nevermind that is Demon Hunter. Either way they're both Christ-Core bands. Hail Jesus!
First of all, what's wrong with having lyrics about God? Secondly, a lot of your so-called "Christ-Core" bands are actually more talented than the more mainstream metalcore bands out there (i.e., August Burns Red). Third, even the guys IN the band Demon Hunter joke about their name, that's where it all started and why they chose that name.
As for the artwork, even the work for Saints was nothing overly-exciting or eye-catching. Definitely not Invisible Creature's best work (who also happen to be the vocalist and guitar player for Demon Hunter).