I don't have reliable information about "The Crystalline Moon Palace no.4" by Xiyao Wang in my training data, so I cannot write a factually accurate description of this specific artwork. To provide you with an art-literate and factual response, I would need to verify details about the work's composition, themes, and artistic approach. I'd recommend consulting the artist's official website, gallery representation, or exhibition materials for an accurate description of this piece.