This is a great snap but it is NOT the 5th Dalai Lama withGushriKhan because (1) if so they would not be depicted sitting at the same level, the DL would
Monastery, Tibet, showing the 5th Dalai Lama flanked by GushriKhan and Sonam Chopel, aka Rapten.jpg This mural in the main temple at Samye Monastery in Tibet