We have "nice" as a hint, since sometimes you use "nice" when referring to nice-looking objects. But you should think of יפה mainly as "beautiful", "pretty". If you say a person is יפה, it doesn't mean they're nice, only that they're nice to look at! He is nice: הוא נחמד.
So, this can be "nice", as long as הן refers to some feminine-gender objects.