In Dexter Season 6 episode 7 named Nebraska, Dexter travels to Nebraska to investigate a possible resurgence of the Trinity Killer. In this episode, he's accompanied by his brother as his imaginary friend, instead of the usual Harry Morgan. There's a scene where an innkeeper threatens Dexter with a gun, and Dexter kills him with a pitchfork in self defense.
Immediately after the kill, we see this frame, which resembles a famous painting I have seen before, where a man and a woman are standing in front of an old house. I cannot recall its name.
Is this a deliberate Easter egg regarding that painting, and what's its name?