damn, in the 2nd pic, dude with the red hat got some big arms!
But lacking in detail. Only helped by the pose he is doing. The "swarthy" looking dude on the left, his delts overpower his arms, and he seems to have a somewhat "sausage arm" look.
I was looking at some of Hannibal's videos (the one who does the bodyweight bar-work), and dude is more ripped and defined than these dudes. I'd rather look like him.