When you think about it friendly!Hulk is just as if not more scary then angry!Hulk.
Hulk looks weird in this style, sort of friendlier.
He looks less like the Hulk from the Avengers here and more like the one from the tv show. Except with the personality of the Friendly Giant. You know if he was also green and trying to promote peas from his castle.
Might do a variation on this later, the initial sketch had a different expression for Loki that I liked too.
Tumblr Reblog - Hug your enemies, until they stop moving