The end of this movie was probably the most poignant of its scenes for me. Even without the gradual transitioning of his thought shown through the window, what he conveys in this single shot alone is a diamond of his talent, capable of acquiring so many brilliant faces as it turns.. 
Yes, the ending of Jarhead is movingly beautiful. It now shows his famous look, as what he did in BBM, Zodiac, and Rendition...