From Top Left to Top Right, and from Bottom Left to Bottom right are the following:
"From the Atom, it rises," with Nick Fury, "O Captain, My Captain," with the International All-Captains Squad, "Deadly is the Black Widow's Bite," with Black Widow/Mystique and Screaming Mimi/Songbird, "Tremble at the Might of M.O.D.O.K.!" "If this Be My Thanos," with the Fantastic Four, and "This Forest Green," with Ant-Man, Egghead, and a special Fractal appearance by a Simpsons Hulk!
Was that Simpsons Hulk drawn by Matt Groening? I love this show!