The Reformed Protestant view against images of any kind in worship or out is ably presented here, from which this important excerpt:
Yet another strongly worded evangelical Protestant position against the creation of images of any member of the Trinity is found in the Westminster Larger Catechism, written in 1647. Question 109 asks, “What are the sins forbidden in the second commandment?” The catechism answers as follows: “The sins forbidden in the second commandment are, all devising, counselling, commanding, using, and any wise approving, any religious worship not instituted by God himself; tolerating a false religion; the making any representation of God, of all or of any of the three persons, either inwardly in our mind, or outwardly in any kind or image or likeness of any creature whatsoever.” Here, one of the most respected and widely used catechisms in Protestant Christianity since the mid-17th century notes, in no uncertain terms, no member of the Trinity may be represented by any physical or mental image.
