Danbooru-based image board with a specialization in high-quality images.
fate/stay_night piromizu thighhighs toosaka_rin transparent_png vector_trace

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Style looks Kantoku to me.
This artist's work is very similar to Kantoku! Sometimes I see his posts show up on my Pixiv and I think it's a new Kantoku artwork, but it turns out to be Piromizu's instead.
Duplicate artstyle is basically about the new norm, nowadays ^^