Beautiful creature, and excellent photography! I too love scorpions.
Scorps have a bad reputation, but from my limited experience, they are not aggressive at all. I currently keep African Emperors (one adult pair, and their offspring), and a Striped Bark Scorpion (Texas native). I don't play around with the Bark Scorpion, but the Emperors are easy to handle. The only time I've seen what I would consider aggression was from the female when her young were still on her back.
I will admit that I have not been tagged by any type of scorpion as of yet. Once it happens, my opinions could be swayed. 
Just curious, and if you aren't able to share that's perfectly OK, but what is your client's intent with the photos?
Regards,
-Brandon