Thanks, Julian! I love your portrayal of Peter!
Chapters 3 & 4 have a rather loud buzzing sound in the background. Did you noise clean? I was able to noise clean your files and they sound good, but it may sound even better if you noise clean the original files before converting them to mp3. It would be good if you noise cleaned all your future files as well.
I use the following noise cleaning settings (and I've found them to work well):
Noise Reduction (dB): 12 dB
Sensitivity: 6.00
Frequency Smoothing (bands): 3
A setting of 12 is a moderate setting (to use if you have moderate noise) - it doesn't cut out all the background noise, but you also don't get a strange echo in your voice.
For reference:
https://wiki.librivox.org/index.php/Noisecleaning_With_Pics
Aside from the noise cleaning, everything else is PL OK for Chapters 3-5. I really like the whisper tone and little chuckle. And Peter is quite a story teller himself -- nice!