Which sentence is a run-on sentence?

ross found the test hard he gave up.

maya was bored; she walked out.

reese said hello and hugged her.

john applauded and left the stadium it is raining, but i will go to the game.

What is emphasized in william carlos williams's "landscape with the fall of icarus" but not n pieter brueghel's landscape with the fall of icarus? what conclusions can you draw about the similarities and differences between the themes of the two works?