I don't want to be too critical about your ISS, so I only spent a few minutes to check out this video. I had actually watched it before. I thought I'd document a few things that looked a little funny to me and list them below. I'm not looking for a fight. If you want to discuss them, be my guest.
I don't see anything in your comments that suggests she is not in the ISS and lots that suggests that she is - especially how she can move around equally well in three dimensions and the behavior of her hair, jewelry, and the cable bundles. All of these are exactly as would be expected in a free-fall (a.k.a. "weightless") environment.
1. Her neckless necklace is going all over the place, yet all the wires are not moving much if any.
She's moving around and the equipment the wires are attached to is not.
2. Her hair seems to stay straight up above her head even when she tilts it down.
Yep. It sure does. That's because she's in free fall. There's no force pulling her hair any particular way, it has some rigidity but little mass, so it doesn't move (much) wrt to her scalp. If you've ever seen an electrostatic generator to make someone's hair stand on end, you'd know that even a small electrostatic charge would make hair do that when it isn't being pulled down.
It looks very unsafe to me to have all those dangling wires and cables around. Some could pull the wires out of the actual connectors.
Yeah... we know that's your thing.
In working labs cables are often not tied securely to the equipment they're used with. If you've ever been in a working lab you might know this. The ISS is a working lab.
One minute into the video we see kind of large white cables just hanging there in mid air, yet her hair is standing straight up.
Yeah, OK. Remember, the whole station is in free fall, so that would be expected. What did you expect these things to look like? Hanging down? Which way is "down"?
Do you think this is a proper way cables should be secured?
The builders didn't ask my opinion about it, but what they're doing is probably a compromise between utility and neatness and appears to work, so my opinion of cable stowage isn't particularly germane.
3. 1:13 minutes into the video she is on the ceiling stretched straight out, yet her hair is not pointing up now, it is still standing straight up above her head.
Yep. It's because she's in free-fall. That's because she's in orbit inside the ISS. Pretty cool and looks like fun, doesn't it?
4. 1:23 minutes in the video she has no problem kicking the coiled cable out of her way. Like it isn't important anyway.
She touches it with her foot, anyway. Have you ever touched a cable bundle with your foot? Did doing so cause some particular problem?
Why would they leave cable laying around like that anyway?
You will have to ask the designers or occupants of the ISS the reason why that's done if you want a definitive answer. It's probably for reasons of practicality, but that's just a guess.
Who does that?
Lots of people do.
5. At 0:50 minutes into the video I noticed a loud noise could suddenly be heard that sounded much like an engine of some sort. What could that sound be?
Machinery of some kind?
6. 2:38 minutes into the video, just above her right arm, there looks to be a printed circuit board that what looks to have green lit LEDs just hanging there by the cables. Is that safe leaving a powered printed circuit board hanging around? Who would do that?
Maybe we're not looking at the same thing, but some equipment attached to the wall in the upper right part of the frame has green lights on it. It looks fully enclosed to me. Is that what you're commenting on? At least the lights are green. If they were flashing red, that might indicate a problem of some kind.
7. 3:04 minutes into the video the noise I mentioned in 5. suddenly got louder. I swear it sounded like a jet engine to me.
OK. It's nice to know what you swear it sounds like to you. I guess...
I could go on but no point in that.
You're right!!