Hi Anna,
I think your presentation is very clear. I know it takes up a lot of space, but this is how I generally do things, as well.
I use the braille music comma to show the grouping of eighth notes in 5/8 and 7/8 meters, unless they remain constant throughout and is specified by the meter - sometimes they'll show 3+2/8.
But if it changes, I find it's helpful to use the comma to show the division.
Kathleen