My sketch model was a pyramid shaped statue at the Turin museum. I took the titles from another side of this piece, meaning "Great God, Lord of heaven". Horemheb's tomb also has a Heru with these titles, but I think that one is Heru-sa-Aset, (Horus, son of Isis)

I wish I could say the final digital version hadn't been altered, but it was. Some of the image's weaknesses revealed themselves when I flipped it horizontally.

Version facing left