That's Pit's character model from Brawl, the title is lame, the "boxart" was made in 2007 and yet I have never seen this game, and to top it off at the bottom of the pic it tells you who the creator is. So yeah, I'm pretty sure this doesn't or will ever exist.
You will find fan made coverart and game things all the time. MH is really popular for this right now. Just Type in "Monster Hunter Vita" and any search engin and you will find a lot of photoshop and other images. It's easy for a lot of people to get confused. So asking is always the best thing to do with anything you are not sure of.