Macbeth, once again underestimating his opponents, does not realize how terribly the battle could go in act 5, scene 5. I imagine that Macbeth’s facial expression is exactly the same as the one shown above. At this moment, Macbeth realizes that Lady Macbeth is dead and he is in a state of shock. He only thought that he would be the one doing all the killing.
“Sudden Realization (Chrisopher Lloyd).” ReactionGIFs.us. Web. 20 March 2016.