It's hard to say. Are either of you going to travel to be with each other or are you doing these scene by telephone or video?
He really has no way to control you if you are apart, although the game may be fun for both of you. OBVIOUSLY he can't really control when you go to the bathroom, masturbate, have orgasms, what you wear etc if he isn't in your presence.
DO NOT SEND PICTURES WITH YOUR FACE no matter what he says. Pictures will be on the internet FOREVER. The fact is I wouldn't send him any photos or videos and don't let him make his own even if you meet in person.
If you meet in person you must get his real name, driver license and let a friend know who he is and where you will be so you can make a "safecall" to a well trusted friend. You can have your trusted friend call you too when you are with him.
DO NOT get into any type of restraints with him in person until you know him very well, and even then, start slow with maybe a leg or two restrained, but NOT YOUR ARMS, and even then start with one at a time. Once one or especially both arms are restrained, you are helpless. You should have met a few times before having your arms restrained.
He sounds like he just wants to control someone.
Your not feeling comfortable with his requests says a lot.
Sadists and Killers are out there and you don't want to become a statistic.
Quite honestly, this guy sounds like a real asshole. I would stay away from him.
By the way, how old are you and have you ever had a dom/sub relationship before? I don't want to sound like a mother, but these are things I told my college aged daughters.