4th aspect - facial expressions and posture.
• At the beginning - Antonio with down cast eyes and posture him slouched
as he has accepted his fate. But in the end his look is a slight smile; despite
his victory he reverts that shylock has lost his money.
• I would depict shylock with a delighted facial expression,some what
grinning,since he's confident that he will take a poud of Antonio's flesh.
Towards the end I would depict shylock in a way suggesting numbness,
with a dropping jaw as he was defeated in the end.