If you have some pictures of a style of dragon you like, that would be very helpful. Maybe you could post a few? I've just been playing around with ideas at the moment, but if there is something specific you like about a certain dragon, let me know. Also, is this going to be all black, or coloured?
As for the size of your wrist, I don't know if that is okay to post on the forum or not. Maybe
PM it to me to be on the safe side.