This is the 3681st most frequent Japanese word.
あらわ
"あらわ" means "exposed," "revealed," or "manifest."
In this sentence, "あらわれる" is used as a verb to mean "to appear or to be expressed." It refers to the appearance of astonishment on someone's face.
彼の顔には驚きがあらわれていました。
His face showed astonishment.
Here, "あらわ" is used as an adjective meaning "open" or "clear," indicating that the subject expressed thoughts without reservation.
彼は問題に対して自分の考えをあらわにしました。
He openly expressed his thoughts about the issue.
In this case, "あらわす" is used as a verb meaning "to express" or "represent," referring to the painting conveying the essence of modern culture.