how are Antigone and Ismene contrasted in the first lines of the play

Antigone is much more rebellious and bitter over this war between brothers. She wants to do something for her unburied brother while Ismene is much more hesitant. She does not want to face "total ruin".

Antigone is the direct opposite of her sister Ismene. Ismene is a beautiful, quiet young woman; Antigone would be described as anything but beautiful She's a scrawny thing, rather shy, isolated, and at times she might be considered a brat. Ismene has a womanly figure, whereas Antigone still sports the boyish figure of a youth.

Antigone has picked on her sister forever; she bullies her regularly....... she's quite jealous of her beauty and other attributes.