The FSSP site also now has some pictures of the Pontifical Mass in the usus antiquior, which H.E. André-Mutien Léonard, bishop of Namur in Belgium and perhaps known to NLM readers as one of the participant of the famous 2001 Fontgombault liturgical conference, celebrated for Juventutem at the recent World Eucharistic Congress in Québec, Canada.
Here are two samples:
Thanks to the tip of a commenter, there are more pictures of this Mass at the site of the Eucharistic Congress. Among them, some beautiful details of the vestments: