Some impressions form the Papal Mass of Palm Sunday which the Holy Father is celebrating at the moment:
The procession; at this moment, they are singing "Gloria, laus".
Incensation of the altar:
The Pope at the throne:
The chanting of the Passion:
Et emisit spiritum:
And some professional images have become available:
On this very good portrait, we also get a good look at the rationale with the arms of Leo XIII (click to enlarge):