Echo is an evolutionary robot programmed with a rapidly adapting artificial intelligence, versatile enough to fill multiple battlefield combat roles. Her ultimate is basically her copying whatever other heroes she scans. This comic plays off of that, so she is imitating Hanzo, much to his chagrin. So try to make the lines playful in its attempts to repeat Hanzo. Feel free to try the lines with and/or without effects and how much you'd like to do your own Hanzo impression, have fun with it!

Voice reference: https://www.youtube.com/watch?v=C3mdzMXfeRQ