Pitch works well enough here, as it sounds appropriately young for the character and somewhat supports your tone. Your delivery however, is very inconsistent as you have the emotional back in the first half your audition yet completely fall flat afterwards. Tone is also inconsistent as you manage to give a good obsessed tone at the start but every other attempt at establishing your emotional input seems lacking. This is especially so in your final lines that sound robotic and not at all like a scientific assurance should be.
Sp need to work on emotion in just the last 2 lines?
And the second part of the second line. Both of those are unfortunately lacking in tone for the character, but if you're going to do it redo it, I need you to do all of the lines so they retain the same consistency.