Here is the full list of all 12 Heart of the Woods trophies - there are 11 gold and 1 platinum.
Collect Every Trophy
Achieve the True Ending
Unlock all images in the Art Gallery
Unlock all songs in the Music Gallery
Achieve the Freedom Ending
Achieve the Sacrifice Ending
Reach Chapter Six
Reach Chapter Five
Reach Chapter Four
Reach Chapter Three
Reach Chapter Two
Begin Chapter One