Well it is implied throughout the books that she's not exactly the prettiest face floating around the Galaxy. At least, according to the throught processes of people like Ordo (granted he has Ms "I'm-so-pretty-I-scare-people" back home but ymmv).
I actually think this latest picture is much better done than the last, in terms of both proportion, realism and finishing quality. Everyone has thier own idea of Etain, and I think this artist did a pretty decent job taking her majorly defined traits, freckles aside (let's face it, most teens, and that is what Etain most likely was in HC, lose childish features like that as they mature), and combining them into a 'neutral' composition.
My biggest qualm with this depiction is the age that Etain is depicted at. She looks like she's in her mid-30s here.