I came up with an Axonn mask/system horn combo and some friends such as Dark Crusader said it looked like a Plague Doctor mask. I listened them and made this.
I originaly wanted to make a skeletal doctor which explains the glowing internal organs. Then I though the head was bir-ish and made the body and limbs look like a bird's. Then it remembered me of Thoth, Egyptian god of Wisdom and Knowledge, and Osskah, a birdlike alien once cured by the Doctor in the Doctor Who short story "Osskah", which explains the sonic screwdriver.