As a cosplayer, Belle Delphine often dons any of a bright rainbow assortment of wigs, which she tailors her makeup and costumes to match. This type of cosplaying certainly isn't unique to Delphine, but that doesn't mean she isn't widely recognized for the way she looks.
Delphine has shaped her image to be that of an iconic e-girl who leans heavily into the gamer girl trope. She's also managed to perfect the Ahegao style of Japanese Hentai, which she credited for boosting her popularity early in her career in an interview with Cold Ones Clips on YouTube. These pictures typically feature Belle wearing a brightly-colored wig, pointy elf or cat ears, a slightly reddened face, crossed eyes with one open larger than the other, and a protruding tongue. There are plenty of other e-girl/gamer girl cosplayers out there who attempt the look, but Delphine is one of the few noted for her perfection of Ahegao.
Despite her connection to the popular style, she's not a fan of doing it and has said it's not as easy to do as it looks. Regardless, she's managed to build her popularity on that and many other cosplay techniques, many of which rely on her use of wigs. Her wig collection is rather large and consists of varying shades of pink (which she uses the most), red, brown, black, blonde, purple, blue, white, and green.
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