What they were: See what the models dressed as for Halloween Bella Hadid Photo: @bellahadid What they were: See what the models dressed as for Halloween Halima Aden Photo: @halima What they were: See what the models dressed as for Halloween Alanna Arrington Photo: @alannaarrington What they were: See what the models dressed as for Halloween Martha Hunt Photo: @marthahunt What they were: See what the models dressed as for Halloween Sasha Melnychuk Photo: @Sasha_melnychuk What they were: See what the models dressed as for Halloween Lili Sumner and Grace Hartzel Photo: @graciehartzel What they were: See what the models dressed as for Halloween Heidi Klum and Grace Elizabeth Photo: @lovegrace_e What they were: See what the models dressed as for Halloween Paloma Elsesser Photo: @palomija What they were: See what the models dressed as for Halloween Naomi Campbell Let’s face it, Halloween is basically a model’s game. Here are the best costume flexes that filled our feed.