I was also going to say that this looks like the Invisible Man. I guess it's hard to say that you look like something invisible. I thought this was pretty creative. As I have some art pieces lying around, I really thought this was a good use of negative space. He kind of looks like the Slender Man. Dang, that guy is probably the most popular thing online.
It seems like the arms are mouths. They're just bursting out to attack someone. That could also be why it reminds me of tentacles. I think Slender Man has tentacles at least in some incarnations. The picture looks all wobbly.