I create artwork for lots of different games, and I'm not familiar with all of them. L5R, as you probably know, has perhaps the richest lore out there, so I only know the bits I need to do my work accurately.
That is possibly the most terrifying Shugenja I have ever seen. Hell, he's scarier than any Maho-Tsukai I can think of; after all, they're suppose to look creepy. Pure shugenja, on the other hand, aren't supposed to look like Darth Vader at samurai-Con. That's what makes him so awesome, in my mind. He's a priest to the kami, yet there's nothing priestly about him. Darn good work.