Okay, so presumably the two comics versions of Superman on the bottom of the EW cover are Joe Shuster's art on the left and Jim Lee's on the right (or at least that's Lee's costume design), but is that a John Byrne drawing up above? It looks somewhat like his style, but I'm not certain.
No, that's not Byrne. It looks like Alan Davis to me.
And yes, it's Jim Lee on the right.