>>56342586The biggest change that affects the 'attractiveness' of the models is the choice to go completely lineless in the model style. This means they have to shade and render all the little details like wrinkles, lips, etc that would have just been conveyed by a suggestion line.
>>56345421Take Brassius here. With lines, like in his portrait art here, his more defined features, like his eyebags, look fine. But with a lineless 3D model they have to fully shade and give volume to the everything that sticks out, which looks uncanny