All of those are better than this:
Which is otherwise pretty close to what I wanted. The ox shouldn’t be quite so spectral-looking, but it is celestial, and it apparently doesn’t know what a “sheaf” of wheat is, but those are minor issues. The relative sizes, though…
Prompt
Second character: A male knight in shining full plate armor. He’s clean-shaven, but otherwise appears to be a dwarf. He looks trustworthy, dependable, and honorable. He’s wielding a flaming sword and a shield. His shield and armor are liberally adorned with symbols of a sheaf of wheat and a rose, and he’s also wearing a silver sheaf of wheat on a thin chain necklace. Instead of a horse, he’s riding a faintly-glowing ox wearing barding.