I've bought all of them.(Had to and actually got a pity discount from some girls at TRU ) Still have them sealed. IM is IM from what I can see. Cap definitely has a different expression. I love Cap and would get him because he is one of my favs, but I've to go with my man :hulk: . I'm going to have to say the paint tones on him give him a little refreshed look even so slighty and I love it. He seems more meaner and face looks wider. If you notice by the slightest of margins, his eyes are farther apart and the eyebrow color makes his eyes appear smaller and more intensified.
BTW, yes I can see microscopic.