Oops. I'm not sure if I was allowed to attach this photo. I'm still new and learning what I can and cannot do here. I'd delete it if I knew how.
Why wouldn't you be? Icons are art of course. They may not be to some people's tastes, but they are wonderful nonetheless. For a direct answer to the OP, the Sinai Pantocrator is my favourite image of Christ, but it's well known so I won't bother, but I'd like to show one of my favourite icons (Parable of the Good Samaritan)
There's so much in it.
1) The role of Christ is flipped from it's typical portrayal of this icon in which Christ ministers, this one reminds of Christ's words, "as you have done it to the least, you have done it to me"
2) The Samaritan/Christ are at the center of the image, as the center is representing the proper action for the situation, the Levite is bodily walking away, but is looking with his head uncovered, perhaps he's saying a prayer, so he's a much closer than the priest, who is totally ignoring the man's plight, walking away, head covered, and partially behind the mountain
3) Light is also used to illustrate this, as the center of the image is illumined, and it becomes darker as it approaches the edges.