Overture for the Amazon Rainforest: I like the contrast between the solo flute and the much fuller sound of the orchestral strings. There is an ancient feeling to your melody which works well for portraying the Amazon. The latter half of your track with the guitar and gentle percussion also feels authentic since you are using some instruments native to Brazil, like the cuica. Very nice!
Life as a Jaguar: The marimba melody gives this track a very playful feel. I can imagine this being a fun aspect of the game as you recruit the help of the other animals of the rainforest.
Oil Drilling: The percussion hits hard in this song and the guitar arpeggio playing the minor chord progression gives this track an ominous and possibly dangerous feeling. I like the variation in your percussion.
Deforestation: The solo flute seems to me to represent a sad or lonely tree in a forest being cut down. The bass part that comes in feels like big machinery plowing down everything in their path. Good imagery with your instrument choice!
Climate Change: I think this one is my favorite of all of your tracks! The musical symbolism of accelerating just like climate change is rapidly increasing is a great technique. This gets to the point of sounding frantic at the end which conveys the overall message well. Good job with this soundtrack and I also really like the artwork! Thank you for sharing!