I just realized there are actual Chuck Norris spritesheets out there... 
Seems like a fitting Yang replacement.
Oh boy! Sounds like I need to track those down so I have a reference for when I get to work on it.

Are the Romancing Saga graphics entirely in 4bpp? Did you have to sacrifice colors when porting them over?
Yes, they're entirely in 4BPP. And oddly enough, all of the graphics I've ported from it have only used 8 colors. As far as I know, I haven't had to sacrifice any colors when porting them over.
That castle interior wall I love, for instance, was literally copy & paste. I still need to find a suitable replacement for the wallborder/top piece, tho for now the vanilla FF4 one fits in pretty damn well. :)
Though one thing I want to do is make two tiles on the tileset be the wall with a solid line going down one side so I can have that depth effect the wall tile with a solid line on both sides offer. That way it won't look like the walls are all blending together haha.
I'm thinking of of sacrificing the cracked tiles that you only normally see inside Damcyan/Eblan castle to make the room for the two extra wall in the tile data. I also need to get a version of the wood floor into the graphics/tileset data of the Castle Interior so I can have some more variety when it comes to flooring options. If all goes well I can probably just copy n paste the graphic to where one of the cracked tile graphics are and rig it all up!
Edit: Got a first version of Chuck's menu portrait done, using Yang's portrait for a template. It... came out waaaay better than I thought it would.
Next up I gotta revert my prior changes to Yang (before this he was a Smurf-blue Genie) and then I can get on with the fun stuff.