Far be it from me to be the lone voice of non-praise here, but I really think you guys are capable of alot more then a basic character piece on a plain background. A cover like this just looks unfinished to me, and a bit uninspired to boot. It would be fine as a pin-up, but that's something else entirely.
A more specific gripe would be the foreground sword. The top of it looks very flat, to the point that it seems that the sword is twisted at an unnatural angle. The foot underneath Deadpool also looks a bit off, although I'm not sure how it could be corrected without changing the lighting or the pose itself. I'm not sure I'm a fan of the red spots down there either, but at least it's better then the alternative of leaving it black and letting the reader assume that it's something else entirely.
As far as positives go, you have done some good work on Deadpool's suit. The lighting, as it is, is exceptionally done. Not only in that it appears consistent with a singular source, but that the overall perception of depth on the character is sound as a result. Though I don't tend to speak fondly of lens flare often, this piece handles it in an interesting way. I do wish it was a bit more subtle but, being that this is Deadpool here, I can understand if subtlety has been largely passed over.
...sorry, this is a bit long for a comment.
Short version. It's good for a pin-up, but a bit lacking as a cover. General form is fine, save for a few minor details. But it's a fine use of your talents and time. Go have yourself a celebratory cupcake.
thanks man! The "lens flare" isnt the default photoshop filter. its just a screen layer with the brush tool set in color dodge mode. As for the white background, it was required that all the variant covers for that month has plain white background