www.howtodrawcomics.net/Here's the website. I'm sure the FB link is on there. If I remember correctly, he didn't directly post your Deviant page, it was something added in a comment... like he mentioned your Deviant name or something like that. I just did a quick scroll and couldn't find the exact post, but I assure you, it's there somewhere.
This is a legit artist, so if he's using your stuff as reference then it MUST be helpful.