One of my very first anime and one of very firts OTP's. I also love CLAMP' designs with the dress and Lulu's suit. Certainly it gives of some sophisticated look, doesn't it? 

I also like the concept of YinYang, so you can get a feel of it looking at the picture. At least I do feel it in my mind.

And doesn't everything goes around chessboard in Code Geass? It is certainly one of main themes, and I used it too, putting both of them on the chessboard like, marble floor and chess pieces representing them.

Overall, it was first picture when I actually got around the technique of clothing shadind, so it is still very much clumsy. And layering didn't work the way I wanted to, so yeah. 

Anyways, I am quite satisfied with the result. 

I hope you like it too ^^