Danbooru-based image board with a specialization in high-quality images.
kagamine_len kagamine_rin shimeko vocaloid

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I can't understand. Pixiv is nearly what, 2 years old? Only that? And deviantART is almost 10 years, yet no special artbooks coming from deviantART. Lack of good artists isn't an excuse, there are hundreds of them. Sigh.