I am in no way an expert on art. However, it does seem to me there is a distinction between icons and other Church art. Icons, I understand, are intended to “pull” the observer into another world; a sort of mystical world that will bring a closer union with God on a kind of wordless level. That, I understand, is why the figures’ eyes are often overlarge and dominate the icon. The idea is that the eyes will arrest the attention and draw the observer into that contemplative state. Nothing wrong with that.
Other Church art, however, particularly including Renaissance art, is more celebrative of the glory of God and the dignity of the human person. They are far more realistic, have few exaggerated features, and tend to draw the viewer into a vastness of space and time that is intended to communicate, the grandeur of the Divine, the holy and the soul, as well as the “human” dimension.
Both, of course, have been largely abandoned in “modern” Church decor, in favor of felt banners and weird, deformed and usually miniscule statuary.