Murasaki Shikubu (Fate/Grand Order) by REGEND/Danaquisition.

My mourning clothes~
are the shallower hue~.
But tears plunge my sleeves~
into the deepest wells ─── 『Tale of Genji, Ch.9: The Monster』 


I took some liberties to make her more "pairable", hence why strands of her hair and that weird floaty thingy in her Caster ascension 3 form are gone.