This model frequently takes poses that imitate famous works of classical art. I don't know what if anything he was mimicking here. Of course even a familiar pose looks entirely different if you are looking at the model from another angle.
A friend of mine asked me what this character was supposed to be doing. He said "He looks like he's hailing a cab in the Castro district and I would know!" I had to ask for an explanation because mine is a sheltered life of non-worldliness. The Castro District is a gay neighborhood in San Francisco. Naw! He doesn't look like that! Does he? Well I guess if my gay friends say he looks gay, he probably looks gay.