Here's a fun little detail about "This is what it sounds like". Mira and Zoey start in their "Golden" outfits, as they've had no time or reason to change since all that went down. It's a bit militaristic, spikes, fringes, and the main fabric seems to black sequins.
We get a closer look at the sequins during the start of the fight, when the girls are all coming together along the three stages.
And then the three girls hug, which recreates the Honmoon and rebuilds their magical alliance, and to signify that, Mira's and Zoey's outfits turn white, showing that they've been sanctified. So far, so good.
But crucially, the white outfits don't have sequins anymore. They have something else:
It's subtle and easy to miss, but the post-reunification outfits of Zoey and Mira are both smooth, but feature some subtle pattern work. Zoeys are a bit more playful, Mira's a bit more angular, both unique to them and their styles. But crucially, they match the demonic patterns on Rumi's skin.
The outfits are telling us that not only have the three reunited, not only have they forgiven each other, they're telling us that these girls are a unit. If one of them has patterns, they all will wear patterns, and be proud of it. They're 100% on Rumi's side.
Of course this is also what the text of the movie is literally saying anyway, it's not exactly subtle, but it's great to see it reinforced in subtle ways like this. I'm sure many people noticed it right away, but it took me several watches of the movie and the promotional Youtube videos to notice it.
