Royal "Interior Design" in Biblical Judah

Ever wonder what the decoration scheme was inside Solomon's temple? What the walls of an ancient Judean palace might have looked like? A clue comes from an ancient burial chamber of the First Temple period. Take a look at this photo of said chamber, which lies under the St. Etienne Monastery in Jerusalem:

The rock walls seem to be carved to resemble the cedar paneled walls of the living spaces of Judah's upper class. To the right of the door, you can imagine some sunken cedar panels. I've gone ahead and used Adobe photoshop to fill in the cedar panels and planks where they seem to me to belong. See the reconstruction below and let me know what you think! (Bear in mind that I'm neither a carpenter nor the son of a carpenter!)