I've never seen an official one I'm afraid, but anything that is using the very pale flesh tones and pale greenish clothing with the blue spot colour, like the image in the codex would be recognisably them. And there's certainly room to vary the specific colours within a pale overall theme and be spot on.
Looking forward to seeing what you make of them!
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One does ones best.
A stitch in time, saves nine.
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The Templar & The Alien - Battle Report
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No Rest for the Wicked, a UK based Warhammer 40,000 LARP