the horse statue represents the "bronco", free-spirited mustang, an american equine, a symbol of colorado and denver herself. the football team in denver is named "the broncos".
1st drawing illustrates peace with innocent children surviving and thriving after the catastrophe of war and tyranny which is symbolized by the fallen soldier in grey.
2nd drawing portrays rescue and salvation from natural disasters by children protecting and keeping safe birds and animals away from destruction. incidentally, colorado suffer from wild fires almost every peak of summer for the last decade.