it's interesting, but I wonder three things:

1: why you didn't include the trumpet performance in your example
(even though I know that wouldn't be used in the student practice. How would the student know it they were performing correctly?)

2: No timing variation? Surely timing is an important aspect of performance, so I thought the consistent repetition of eighth notes (quavers) in each four bars would not encourage the student to practice their timing skills.

3: 11 bar phrases? Unusual?

BIAB & RB2025 Win.(Audiophile), Sonar Platinum, Cakewalk by Bandlab, Izotope Prod.Bundle, Roland RD-1000, Synthogy Ivory, Kontakt, Focusrite 18i20, KetronSD2, NS40M Monitors, Pioneer Active Monitors, AKG K271 Studio H'phones