Yelinak's current appearance on Project1999 seems to be post-classic, with his teeth having been changed from red to black some time during or after Luclin.
Project1999, Blue Server
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Below are screenshots that contain character models/items and/or UI elements from Luclin, with Yelinak displaying black teeth.
https://web.archive.org/web/20020104...r/1217/yel.jpg
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https://web.archive.org/web/20020401...29/yelinak.jpg
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https://web.archive.org/web/20020816...24-02-yeli.jpg
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https://web.archive.org/web/20040622...spics/Yeli.jpg
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https://web.archive.org/web/20021015...ts/Yelinak.jpg
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