“Under their wings,
On their four sides,
They had human hands.
The four creatures
Had their faces
With their wings
In this manner.
Their wings touched
One another.
Each of them
Moved straight ahead,
Without turning,
As they moved.”
Apparently these creatures had 4 sides, not merely 2 sides. They had human hands under their wings. Each of the 4 wings on each creature touched each other, just like the seraphim in the Holy of Holies in the sanctuary. They were able to move or walk straight ahead without turning.