The galhot form of Phobos from my AU.
(English is not my native language, so there may be mistakes. Please be understanding)
In the series and comic book from time to time it is shown that some residents of Meridian can change their appearance to human. It's not even about werewolves (Cedric and Miranda), but about ordinary meridians.
The most striking examples are Alborn and Miriadel (Elyon's foster parents), as well as Galgheita Rudolph (a math teacher on Earth and Elyon's nanny on Meridian in the past). Escanor's were not spared either: in that series, when Phobos shows Elyon family portraits, they change their appearance between two states. The audience is shown aunt Primrose, uncle Reginald and cousin Vivian.
I have a headcanon on this. It lies in the fact that the meridians that are shown to us only in human form (Phobos, Elyon, Julian, Drake, etc.) actually also have a second form. They just don't do it often. Or, in the case of Elyon, they don't know how to do it.
In general, I sketched the galhot form of my Phobos (meaning the Phobos that is associated with AU, where there is Chimeris). I don't know how well I managed to convey it, but I imagined him looking like a whisperer. There would be a certain logic in this (that he created them in his own image and likeness). And the connection with plant magic, of course.
Changing the hairstyle made the prince a little less recognizable, but:
a) I like it
b) changing the hairstyle during the transition fits into the canon (look at the screenshots)
c) with a completely old hairstyle it would be too boring and cautious.
I will be glad to see your questions or arguments on this topic.