No ... we don't need images but icons and statues are like photos of loved ones that we carry in our wallet or turn into wallpaper on our computer. In the Bible, there are many many passages where the Lord commands the making of statues. For example: "And you shall make two cherubim of gold [i.e., two gold statues of angels]; of hammered work shall you make them, on the two ends of the mercy seat. Make one cherub on the one end, and one cherub on the other end; of one piece of the mercy seat shall you make the cherubim on its two ends. The cherubim shall spread out their wings above, overshadowing the mercy seat with their wings, their faces one to another; toward the mercy seat shall the faces of the cherubim be" (Ex. 25:18–20). Similarly Ezekiel 41:17–18 describes graven (carved) images in the idealized temple he was shown in a vision, for he writes, "On the walls round about in the inner room and [on] the nave were carved likenesses of cherubim."
For many of us Catholics, to look upon Christ crucified is a reminder of the sins we committed and for which He shed every drop of His blood. It is humbling ... to say the least.