Very nice
I really like this one! It has such a fun feel to it that I really like.
However, there are some changes that I would suggest. The transistion between the two feels was almost to sudden. It works, but could be better. You might try having the croaking and crickets starting sooner to help bridge the gap a little more, either that or even the bass. Just some ideas. Also, I was expecting the song to go back to the original feel. I bet you are planing to do that in the final version. ;)
I do have a suggestion for a title as well. "Amazon". I see water in this song, especially with all of the arps in the begining. And the croaks and chirps really sold the idea of the Amazon River to me. More croaks and chirps might be a great idea for 2:00ish to the end. I really do see a river in this song.
It already sounds amazing! I just wish that it went back to the orginal feel at the end, kink of like "Welcome To The Wild", execpt there are animal sounds in the background instead of a roaring crowd. :)
This sound great! I can't wait to hear the final product!
<PS>