Besides her complexion, what features of Clarisse does Bradbury emphasize?

From the text:

Her face was slender and milk-white, and in it was a kind of gentle hunger that touched over everything with tireless curiosity. It was a look, almost, of pale surprise; the dark eyes were so fixed to the world that no move escaped them.

There was only the girl walking with him now, her face bright as snow in the moonlight