Okay, Steve kind of has a double chin, and he's casting a really awkward sideways glance at Iron Man. He looks like he's thinking "Is he going to repulsor me? I thought we were cool now. I wonder if his brain's really working right?"
Also, Thor's face concerns me. He looks like a catgirl.
And looking at Steve there, I'm not feeling much dramatic tension for Who Will Wield The Shield.