Melony is a female humanoid spirit created and owned by the artist Thompson Vonjung.

Created in 2016, The design was to decipt as an unique manifestation of music which is why the head asembles a music note, the character behaves as a siren, sings mesmeric melodies to lure those who are near.

The artist allows fan art of her without permission, credit is required.

Ah compremsive gallery of her can be found [here]

See also:
Thompson Vonjung
Spirit
Ghost