Slow motion fireworks with the Freefly Ember

Yes some of the bigger fireworks are out of focus. I thought it would be easier to to use the 135mm T2.2 for closer up shots of them, but I think I just made things harder on myself.
Ya the first half was more of smaller fireworks at 1080 at 1500 fps and the bigger cooler looking 5k at 600fps are later on. Hopefully though this kinda shows how some fireworks work in slower time.
Let me know how good or terrible these look, but I figured not bad for filming bigger fireworks for the first time and honestly the Ember I thought did really well in the darker lighting.

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You're a lovely couple (in case you're a couple)