Mac's Clear Gloss, £20, to create a super high shine on the eyes, lips and high points of the face for a lifted and exaggerated look.
If all else fails, go as yourself, and then some. Klum created her signature look, six times over in 2016, when she arrived at her fright night with five model clones.
It's all about the eyes here, focus on creating Heidi's classic smokey eye look with a dark brown blendable eyeliner like Rodial's Smokey Eye Pen Brown, £17.
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