hi alexandra, thank you for the poems.
we ask readers to complete the test recording to be able to catch and address problems with the setup before recordings are posted. one of the problems we check for is the volume, and this one is causing trouble in your recordings as well.
we aim at a volume of 89 decibel, while 86-92 is generally deemed acceptable. none of your recordings fall into this margin, your test is 77 decibel (barely audible in my standard settings), and your other sections also fall around this margin, with 29 being 85 decibel and the other two coming in at over 98.
have a look at our tutorials
http://wiki.librivox.org/index.php/Audacity_Tutorials
a lot of them address issues with the volume.
while it is easy to increase the volume, if you increase it too much your wave forms will clip and your sound quality will decrease. this happened in sections 30 and 31. both of them have a sort of metallic quality in the louder bits, and when you look at your waves you can see how the tops are cut straight.
ill add your recordings to the magic window and we will see what nemo says, he will have more detailed feedback for you. thanks!