И посмотрел у этого автора. Да, в тегах не указано, но зато в описании под артом:
"...Head-canon look of the Twilight apparition the Tree of Harmony made..."
Hello! My name is Po Nee.
I am a normal female equine that was sent to you by Tree.
To celebrate our friendship let me show you your favourite nightmares.
"...Head-canon look of the Twilight apparition the Tree of Harmony made..."