I don't really follow comics, so I'm not sure if this is an actual costume. But, if it is your own idea, it's really cool with the jeans, instead of some kind of tights. Gives it a retro feel/look to the costume.
Very nice shot... I would have gone with a more isometric angle... and with you looking at the camera with a more intense smile... maybe sort of a cocky smile. Other than that, good job!