Everything about half-neko, neko-cha, nekomata.
Images for RPG caracter, like this
/c/ would be a better board for this.
http://danbooru.donmai.us/posts?utf8=%E2%9C%93&tags=cat_girl
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Nekohime from Netoge no Yome
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And Tanpopo from Witch Craft Works. Googling these two and/or taking screenshots from their respective shows should give you something you can work with.