JULIO RIVERA Challenge 2

Hi, I'm Cristina.
My stage name is "Maga de la luz."
I've loved magic since I was a kid. I found your channel through your card magic, and what you do with a deck is insane—it's top-notch.
Here is the link to a mentalism magician who works with books:
https://youtu.be/DMPSVcaW8XE?si=PxRjWbewYioV4qBd

The first part of the routine is well-explained, your patter is solid, and the effect itself is strong.
I would refine the presentation and the switch for the bill to make the effect hit harder. Maybe throw in a moment of misdirection, a subtle glance, or pull out a wand to create a natural pause.