It’s great to hear that these are real voice recordings! I will say that I had a bit of a hard time telling since the audio quality is so high, the voice is so pristine, and the reading seems to usually be done very rapidly, without any pauses.
I understand why a lot of that may be desirable for learning purposes, but I also wonder if leaving in some imperfections (natural pausing, etc) might be better to exemplify how natural Japanese is actually spoken? Just an idea, from an appreciative user.