No I haven't seen anything like that tag he wears around his neck. But as for the avatar itself, go to skin in the creator and turn up the wrinkles somewhere past 50. I've experimented with the all the character creation tools like the wrinkle option. It really does make a character look older when you use it. Dexter as cool as he is, isn't a young man. But your avatar does look like a young Dexter.
ya I should make it look older, do you know if theres any sort of neck badge in stores, you probably would know what I'm talking about, the thing he wears around his neck, if you don't know ill send you a picture on here. Updated Photo
I didn't notice this picture yet, but this one looks really good. Nice job! I think you got it!