Overall you did txantsan
As always, I advise watching out for any strange morphing of Na'vi a or e. Most notably, the e in "munge" sounds a lot like an ì.
I noticed you were trying my pxaya vowels tongue twister, morphing the e along the way (it's not uncommon...). Etrìpa syayvi

Well done on the others.
Nga plltxe nìtxan nìkosman, right down to the intonation 
Could you perhaps post the dialogue too so I can have a better idea of what you're saying so I can accurately critique pronunciation?
-Txonä Rolyu
Ma Txonä, the dialogue of the first recording is of Mo'at at the Tree of Souls, and the second recording is a few of my tongue-twisters. You can also check these out in the gallery.
Ohhh, that would explain why I couldn't make sense of the second one LOL I was listening for like a dialogue or something. The pronunciation was very good tho, good ejectives and vowels
In the 1st one, just a couple things: "mik-YUN"; careful not to mix up the sounds of i and ì like in "t
irea", "t
ìng", and "t
ivìran"; also a little brighter a sound on "ngeyä" to contrast the -yä and ya sounds in "ngeyä ya"
Other than that, poltxe nìtsan ma tsmukan
-Txonä Rolyu