Asking is fine, though he might be not OK with it- I personally can't see any reason for why not but ppl (Ts included) are surprisingly different.
Yes, most Ts have a pic on their websites- I vaguely remember my T has one/two- a selfie and something with him standing on a cliff? I do remember I was like WTF? If I'd seen it before I saw him, I probably wouldn't have contacted him in- overtly dramatic in my book.