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3d modeling hasn't reached the point yet where it can match an artist's rendering in quality and detail--remember that the hand-drawn rendering is two dimensional, whereas the "3d model" can be observed in all three dimensions--she can rotate 360-degrees, or you can walk the camera around her in a 360-degree circle, etc. None of which is possible, of course, with a hand-drawn rendering, or, in a game, a 2d sprite representing a person as a flat 2d surface--like the drawing. 3d rendering is getting better, and I daresay it can look much better than what we see in the beta version here, but much of that depends on how the game developers intend for the game to render, etc.
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Isn't it the other way round? They made the elves 3D-borky-unique in the game but show them in a different way in the 2D art.
I throw wild and unfair speculations: maybe because the Sebille would look strange and ugly in 2D if portrayed correctly? Which would go against the "sexy-look" theme? Of course not only any die-hard religious fan but also all politically correct intellectuals are against "sexy". Although behind the curtain perhaps many like good-looking sexy pictures (perhaps except those who wear socks in sandals). At least I like it, for men and women.
So the 2D picture may be interpreted as hypocrisy. I'm sure the artist could have made her with a skin looking much more bork-like.
