I don't agree with the recent attribution of this one to crybringer. The style of the character is maybe in the same ballpark as crybringer's, but no more. Such a complex background (more detailed than the character!) would be singular for him. (It could be a collab, I suppose.) The lack of a title or signature is also atypical. I've been watching that guy since 2006 and have never seen anything like this on his blog or deviantART account. Requesting source or other evidence for or against the veracity of the attribution.
Got the answer, tag is good. Added another artist, copyright and the colab tag. I'll let Crybringer post more details if he wants to, but since this is official art, he may want to avoid associating with it being posted off-site.