While adding signatures to Oman, I see the name of the signature of Haitham bin Tarik Al Said, Sultan of Oman (2020) should probably be changed to the Chariman of the boards of directors, Taimur bin Asa'ad.
See:
https://en.wikipedia.org/wiki/Taimur_bin_Asa%27ad
I'm not Arabic speaker nor know the language. But the name of Taimur match better with the signature than the one of the Sultan.
So keep the signature picture and then change the name to
Taimur bin Asa'ad, Chariman of the boards of directors (2020-date)
Wiki: https://en.wikipedia.org/wiki/Taimur_bin_Asa%27ad
Data: Q16120011
Could someone with arabic knowledg take a look at it maybe? I think the original source, Moneypedia, was wrong about the signature..?
Sources:
https://en.numista.com/catalogue/issuing_entity.php?id=890