Thanks for the link. Wow they have 542 illustrations tagged Nao Yokoyama

Some others with good plot:

www.pixiv.net/en/artworks/123792947
www.pixiv.net/en/artworks/102144827
www.pixiv.net/en/artworks/101456568
www.pixiv.net/en/artworks/92155387
www.pixiv.net/en/artworks/87602859
www.pixiv.net/en/artworks/87805135