Goodwin INVENTED the eldar physique as we know it since the second edition. When he draws them, they look suitably caricatural (the faces especially), their bodies are strangely narrow and tubular, especially compared to his other characters. Keep in mind that he designs miniatures, he doesn't really do illustrations, so, the approach may be less ambitious, but essentially, it's a success.



As for Kopinsky, it's true that his sketchy style is less efficient on characters, but take a look at his haemonculus illustration. It couldn't look better. And if you want alien-ness, check out the wyches illustration in the codex (I don't think it's by Kopinsky) they look utterly inhuman.