Superman Does Not Look Happy In His First Batman V. Superman Pic

Question: What is Superman feeling in this photo? Anger? Sadness? Is he upset that he's being sued by Batman? All I know is even Superman probably doesn't hang out in the pouring rain if he's in a good mood.

You know, between this and the now legendary Sad Batman photo, I'm kind of expecting the first pic of Wonder Woman to be her huddled in a fetal position somewhere.