Forget about that, everyone just thinks they're smarter than another guyI bet they would have found a lot of "mistakes" even if it had been a native Russian speaker, pronouncing all those words.
As for me I stand firm on what I said about your recordings. They're very good. The intonation and rhythm are quite alright, at least are what you expect to hear from a Russian speaker. Yes, you have some problems with the consonants, but I bet you can work it out in no time. So all the best to you