#13 made me say wow! I really like that style. I am not sure if a logo like JM would be appropriate above that or not? I guess that is why I am here and not doing it myself right?
Yes i think it would be a little much but let me know if you would like to see. I like the clean simple style of the font but elegant at the same time. I think with some icon above it would make it a little busy.
What do you think about putting like a water mark "JM" logo behind the signature on #13? I am really drawn to the #13, I think it would look good on the front of a business card and as my headers on my paper work.