It was a tie between the Tonberry and Lunarian for me.

I know I'm not much of an artist, so I can't speak, but the Tonberry Chef' colours are a bit harsh to the eye. I mean, it's still a wonderful picture, and I assume it's a style, but I think it's just a notch or two too hard.

I love the Lunarian Diner. I mean, just look how happy Cecil looks! XD King Cecil of Baron in a frilly apron, and he's rocking it quite well. Golbez in the back is just adorable. XD