I found two small things. I think they should be fixed, but I'll let Elizabby decide if they're OK or not.
1) You end the introduction with "
Cowardly Lion of Oz, by Ruth Plumly Thompson. Chapter 19." I would have liked to have heard you read the chapter title as well: "
Cowardly Lion of Oz, by Ruth Plumly Thompson. Chapter 19 - In the Emerald City." That's part of the text of the book.
2) At the very end you left 4.2 seconds of silence - 5 seconds is ...ahem... 'recommended'. Elizabby, how strictly is this standard applied these days?
Oh, and you reported the chapter length at 13:35, but I see only 13:31. Did the whole file get uploaded?
Your tech specs are all great. In particular the 'Checker' program reports your chapter volume is exactly in the middle of the acceptable range. There's no noticeable hum. I only heard one spot where a 'puh' sound made your microphone pop (and that one wasn't that much).
I did see several spots where your recording reached clipping. I zoomed in on those to see if the waveform was horribly distorted - it was not, so you're OK. If you're using Audacity and want to keep an eye out for clipping click on 'View'-'Show Clipping' so it's checked. Then anytime the waveform reaches plus or minus 100% will be marked in bright red.