So, the prompt is to use an animal in some way. I am not sure about the Concrete and Enjambment part of this task, but I gave it a shot. At the end you will know what the animal is, but hopefully it will actually look like what it is supposed to.
Ahead of me
Up in the clouds above
A shape to bring fear
To those far and near. If
You look close and you will see it
too. Wings so wide and red as fire.
Can’t you see it?
Burning barns below as it passes.
A winged wonder with wicked claws.
The plight of a knight’s
nightmare. A fire-breathing
menace. A Dragon…
Well, i was going for a dragon with an open mouth. Not sure if it looks like anything.