>>9964443There is a main idea how to eliminate not-so-cute ball joint from a robot's ass. Sorry for flat chibi without knees, it's just for simplicity (final form should be chubbier). Still no good solution for ball-less shoulder. Maybe use tentacle-like hands? Real prototypes exists. But those I draw looks cute, won't lost it.
(Now I want to draw a comics about 2B asked Santa Claus to gift her a little sister, this letter was accidentally received by mad engineer, he spent a years to invent a sister for 2B but she was so cute that he decided to leave her for himself. But I'm sucks at drawing because I'm too lazy and CAD-addicted.)