I think this thread should've been placed in the robot forum.
Really interesting, I'd like to buy one and turn it into a robot custom. I wonder how well paint sticks to the plastic?
I saw more detailed pictures at OSCF. The biceps flex and the forearms actually twist like a human arm.There is also more flexibility in the torso and lower thigh.
You can check it out here. https://www.oscf.net/viewtopic.php?t=1730