Marxist: this picture is Marxist because the baby represents the delicate undeveloped nature of a capitalistic economy therefore rendering that type of economy as a bad idea. Lennie is unaware of the harm he is causing to his best friend George.
Historically, this was the sheep breed raised by the Navajo for their woven rugs. The breed has one of the widest ranges of natural colors of any sheep breed. Navajo-Churro Sheep [someone else's caption]