There's a couple of things bugging me though. The background is clashing with Captain America quite alot, to the point where its almost the same colour. Maybe he would 'pop' out more if you changed one or the other. And that fence that is going right through him ruins his silhouette and we lose abit of his pose.
Secondly, the text looks a tad lazy in comparison to the rest of the image. If the 'Avengers Assemble!' text was totally over the top and more agressive, it would be an bigger comparision to the 'ribs ready', which I think would emphasize the joke more, know what I mean? Sorry if I'm pissing on your chips man. I really like your work, so feel free to ignore!