Beautiful composition. The opening paints a beautiful serene picture. I love how gently you glide into the second section. Love the little pizzacato string details and how they are punctuated by those strings with the long-ish attacks. Beautiful. Nice little drum details everywhere too. Little cymbals, hats, a little piano.
Transitioning into the third section, I feel a little tension rolling in. I guess this tension comes from losing the connection to nature. It's all still pretty gentle, but I definitely hear some tension now. Thankfully, it then resolves back to happy.
Great work!