While this is a nice idea on its own:
There are two reasons why I wouldn't go for this approach of black physical suit with green parts being created by the ring: first, while it might look nice here, it would be too hard on the eyes watching this on actual actors through the entire film. And second, I'd change the way the constructs look entirely.
Regarding the suit - I think we can all agree that considering how GL uniform usually looks, there is no way that it could be made out of that same green energy, so if willing to give him an actual black undersuit, why not go all for it, ditch the idea of ring supplying him with it and make the entire suit physical. A proper space uniform. Preferably, something like this:
With "domino mask" being visors meant to protect their eyes when they're too close to the sun, akin to this:
Regarding the constructs - this might sound blasphemous to most GL fans, but constructs in live-action look silly as hell. I remember some people expressing their desire to abandon the idea of constructs completely, but even though I always found it to be too out there, I kinda liked that idea of controlling and shaping this energy through the power of will. And there is no reason for them to be ditched at all, I'd simply not have them appear as if they're being made out of a green glass. Not just that it makes those constructs look cartoonish, but also doesn't make sense for an energy-based weapon the ring is supposed to be to create a firm, glass-like object like that.
So, I think it is much more fitting to go for green plasma:
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And make constructs gradually take shape out of this plasma mass, similarly to
patronus from "Harry Potter" franchise:
Same aesthetic would work for protective aura around Lanterns or defensive shields:
And it would make it more interesting to be able to watch as those constructs take form from the energy of the ring or even wither as GL struggles to concentrate.
Also, considering that "Harry Potter" franchise belongs to WB anyway, it's not like they're stealing the idea, the worst they can be accused of is self-plagiarism and no one actually cares about that. "Black Sabbath" did so with their latest album and everyone agrees it is the best album they released in last forty years, author of this post included.