You did a very good job of transitioning. I was never lost in the introduction, body, or conclusion because it was very clear as to where the reader was positioned in the story. I really enjoyed also how you brought in science! I think that was a great idea because nature is made up of science; it is man's way of explaining nature. THe one thing I would say that you need to do is to add in a little more about how the science, nature, and this experienced changed your life. I want to hear more about your feelings toward nature.