I love many your landscapes (not macro ;-)), and this one is obviously a stunning image. I like it as is, with your composition. Another option that I would probably try.. as simple as 3/3. But sky in your version is more open, and it ads a space and a different mood.
(This is just from a quick look - I haven’t actually tried anything) - There’s the crop you have of all of the lightning, there’s a tighter crop getting rid of the bottom/right tail which would highlight the central bright spot and give some symmetry, there’s either a portrait or square crop including the lightning and the light above which would put more emphasis on the bright space above the lightning, and of course the full image because the blue is great. I’m still trying to decide whether the open sky on the lower left is a balance (I like the color) or distraction. I’d probably take a bit off the top - the horizontal cloud/sky line is a natural center and also gives up/down balance between the bright area at the top of the cloud and the bottom line of the lightning.
Again, it’s just really nice and provides a great base for playing with post (and given your pipeline, that’s probably something you have fun with).
Did you do an open shutter/bulb exposure or catch that on the fly?
Manual, 25sec. ISO 200, 10 images (are part of the composing) out of 50.
Was out to make a video of Fireflies, but they did not apear, when driving home i did see this cloud and head to a spot i know that’s the highest in the region, with noting but nature around.