[czzr]

Understand firstly that it’s a joke.

The common English expressions are:

“Nondescript” -> not memorable, doesn’t stand out

“disarray” -> messed up, disorganised

This is just changing those to the positive version, but those words are not usually used in English. So it sounds amusing to an English speaker.

You might translate the sentence to normal English as: “She was a striking and very composed person.”