the ICXC are the Greek abbreviation of JESUS CHRIST. There is some more color to be added to the cover, and some gold too. Below is the icon when it's open. The labels identifying St. Mary Theotokos, Jesus, and St. John the Baptist have to be added. The icon stands about 7 inches tall and 4 inches wide when closed. When it's complete, I'll post another set of photos.
You might have to zoom in on the Seraphs which are lightly painted in white and black on either side of the seated Jesus. The prototype model for this triptych is the "Diesis" type of icons - where the central icon is of Jesus, and the side icons are of Mary his mother, and John who was the forerunner of the Messiah. Both of them are gesturing toward him with their hands and inclined heads, saying, "Don't look at us, look at him, for he is the Messiah, the Savior of the World."