A/N: Hope this isn't too bad. I thought I would try writing from one of the turtle's point of view. Let me know if it worked.
Reflection
The figure I saw before me was but a shadow of his former self, a pale reflection of a once great warrior.
His eyes fix me with a hollow stare; I am transfixed by his gaze. He clutches his wounded side, a look of unbearable pain crossing his bloodied face.
He takes a step forward, but stumbles and falls on his hands and knees. His weapons slip from his grasp and clatter uselessly to the ground. His gaze returns upward, searching for my face. Tears fall from his onyx eyes and land in glistening beads on the pavement. His look of utter defeat broke my heart as I ran to him.
I grasped my brother firmly by the shoulders and hauled him to his feet.
"Don't you dare give up on me, Leo!" I shouted. "You're our leader, we need you!"
He turned to me as my own eyes filled with tears. I was helpless, paralyzed by the thought of losing my eldest brother. My look of complete terror must have awakened some small part of Leo.
He bent down and picked up his katanas. He assumed a defensive stance, swords at the ready. A spark appeared in his eyes; Leonardo would go down fighting.
The warrior had returned.
A/N: See, I didn't kill anyone…this time. And I think I made it obvious which turtle it is, but let me know if you missed it. ;)