I see you've taken some of my previous advice to heart, which is great, but I see a few things wrong still.
The first thing that jumped out at me was that you don't give much character description, but you HAVE given names which is good. Am I to assume you'll be giving detailed descriptions in a character sheet presented to the artist? That was a big point I made last time. You want to make it as easy as possible for an artist to draw what you want them to, or be happy with whatever they give you.
The next thing was this panel description:
You've told us what's in the room, who's in the room, give us a description of the state he's in. That's fine. But then you tell us the panel is a close shot of his face. We can't have it both ways. Either we see everything, or we see a close up of the dude's face.A windowless cell. A single yellow globe (the only light souce) hangs in the middle of the room. Directly below, Kheys sits chained to a chair. He is wearing the same cloths from the flashback, but without the dinner jacket or tie. Blood stains his white shirt. He is looking down in his lap. This panel should be a close shot of his face.
This really should be two panels. The close up can easily be a small panel inset in the larger one (on the right side of the page, so the reader's eye will be drawn to it second).
Here's another one:
Well, YOU know it's a decade ago. How will your reader? The simplest way, of course, is a caption that says "Ten years ago..." or whatever. But make sure you put that in the script or it won't make it in.Flash back to a decade ago. Midday, with a bright blue sky. We see John and Alex, younger men and dressed in costume. John is dressed in a darker costume, making him a villain. He holds an electric dagger, blue spark fluing from it. The shot shows the two in mid fight, with John slashing Alec down the face, exactly where his scar was.
I admit I only gave this a quick read, cuz I'm pressed for time at the moment, but it is vastly improved from your previous script. Those were the major things that jumped out at me.
Keep chipping away at it, you're showing promise.