I think his demeanor tough and roughish.

我认为他的举止强硬而粗暴。

I think his tough and roughish demeanor comes more from Han Solo of Star Wars fame. Another character I drew inspiration from.

我想雅各的坚韧和谦谦君子的行为来源于《星球大战》的名人汉·索罗，这也是我其中一个灵感来源。