Uran from Tetsuwan Atom series

[Toshio]

The gray area of the hair is added, because I wish to make color separation later and also give a red hair for example.

Can you explain better how to deal with the jaggies?
But I cannot fully reproduct the example of the face showed here.

Any example to make the shoulders move without pulsating?

I do not wish to try change the proportions, because it's quite discouraging, so the legs will be just like the original.