Ezekiel 1:5
Also from within it came the likeness of four living creatures. And this was their appearance: they had the likeness of a man.

Ezekiel 1:10 As for the likeness of their faces, each had the face of a man; each of the four had the face of a lion on the right side, each of the four had the face of an ox on the left side, and each of the four had the face of an eagle.

Again, I do not pretend to know everything about this portion of Ezekiel or any other for that matter.
I have my opinion just like everyone else including scholars boasting a Th. D., Ph. D., or any other degree.

Again, we look at the Bible from human eyes from an Author Who does not see things the way we do.
This is evident in Ezekiel’s vision of four living creatures with the faces of a man, lion, ox, and eagle.
One other person saw the same thing – Rev 4:7-8 The first living creature was like a lion, the second living creature like a calf, the third living creature had a face like a man, and the fourth living creature was like a flying eagle. The four living creatures, each having six wings, were full of eyes around and within.
The calf and ox may very well be the same creature.
Metaphorically, the four creatures easily represent Jesus.
Man – Jesus came in the flesh as a man.
Lion – He is the Lion of the tribe of Judah.
Ox/Calf – He is our Sacrifice
Eagle (or Vulture) – I prefer vulture, which is a bird that gets rid of death and decay.

Why doesn’t God just plainly say what these things are?
Why not show a simple vision for us to understand?
He does!
Jesus often spoke in parables confounding the wise and enlightening the simple, everyday person.
Don’t over think God!