How to use "emotion" in a sentence

Marius sat down and buried his face in his hands, too overcome by emotion to think clearly

"You said it was easy!" Brandon calls out into the forest of silent trees that surround him, his voice full of emotion

Gradually Michael's displeasure over her desire to succeed was complicated by a darker emotion: He grew jealous of her smallest achievements

And as I looked at it, and realized that the shadows had been rolled back, and that people might still live in its streets, and that this dear city of mine might be once more alive and powerful again, I felt such emotion that I was very close to tears.