Yusuke and Yoruichi came up with a painting of a dark Wyver landscape and the king together... kinda.

Also!! I included my top level to throw this in, but Yusuke has decently high Olympia rep and went around the celebrations in a mask/facepaint to avoid trouble -- he'll be signing pieces under his pseudonym (Fox). Yoruichi mostly hangs around in Wyver, though! So if things turn out well, I think she'd be more the more apt choice to credit.