Shoulder roll, somewhat unpredictable as it is part gyroscopic, though here it was initiated at the top of a manoeuvre so should have been benign with recovery with margin. Held in too long, trajectory eventually goes to vertical where there is no shortcut to horizontal. Like Machinbird says, probably meant to be a half-cuban profile, we could check his sequence card to be sure.
The first loop low? Nah, just airshow where you complete a recovery and then drive it down for drama.
That's a lot of fatalities in airshow in Europe this year. UK, Italy, Ireland, Austria, Switzerland. What the hell is wrong with EASA regulations that would permit this carnage?