"Do you think this is porn" may not be the best way to ask the question. The most important question at this point is "Does this fit within the TOS." I don't think any of the PTB will dipute that some things prohibited by the TOS are not porn. However, I suspect that even though they might not view it as porn, they evaluate it based on the question, "what are the odds that someone else might think of this as porn and take some kind of action against us?" I looked at that image and didn't think it was porn. I wasn't sure of the age of the model either because it was highly stylized. But I'm not risking anything by hosting it so I don't care if he's 19 or 91.

Before they made me they broke the mold!
http://home.roadrunner.com/~kflach/