Having heard the HQ version first, there is always something to be said for the source.
The instruments and animals are less blended, which is interestingly different. I like that the ocarina is slightly more prominent, but especially the birds. There is a slight variation in the piccolo(s) (are their two!? or is it an auto-tuner?) that, honestly, is painful to hear at the volume I enjoy this type of music at. Reverberation. That's what I was thinking of. Yes, it's painful when loud.
I should know, I played flute and pic back in high school, and when trying to tune two piccolos together, our assistant band director had this to say: "Somewhere, some poor dog's head just exploded."