He does have break points in his arms at the shoulder and elbow, in fact Hulk has less visible joints than Thanos.
Thanos isn't actually wearing anything, its just a sculpted body with joints and few piece glued on. The uninspiring expression and generic hands are disappointing. You can tell the photographer struggled to come up with poses
Here, it looks like hes standing on the subway on his way to work. Holding an invisible briefcase, containing his company's secret formula for their special sauce. Hes late and he skipped breakfast. So hes thinking about the granola bar in his pocket, but he has to save that for lunch.
