On the wall, there is a rather large painting of a man who looks like an anime. The caption beneath the painting reads "Emperor Spanosa". You assume this must be his throne room. In very small letters on the painting, you can see the words "Royal Artist - Sol".
ADULT_LINK: "look at wall with things on it, and inspect it to find out wtf it is"
Next to the painting is a glass case. It looks like there used to be something inside of it, but it's long gone now.
High on the wall is a giant stone statue. Some kind of beast with spikes is at the top, as it transforms into a bolt the lower it goes. This must have been the Emperor's Royal Emblem.