Aside from minor nitpicks/changes, only the Black Trailer really needs to be adjusted. There needs to be more weight to the conflict between Adam and Blake in this trailer, and there needs to be some kind of setup for conflict between them in the future. And that conflict has to be good. He shouldn't come off as just some bad guy who is bad, there should be at least some intrigue as to why he is bad, why Blake has a falling out with him, and what the actual point of the trailer is since it was clearly supposed to have one. (Now that I think about it, maybe the red and white trailers should also have a point, but I'm not sure what it would be, much less how to incorporate it.) Also either Adam should've had a good reason to not chase after Blake or it should've been (at least) more difficult, seeing as how it would have been really easy staying with her keeping the trailer as-is. I chose the latter with a minor sequence change, some added dialogue, and some added animation. I also picture Adam with a much more intense voice throughout the trailer. This is the only voice change in the series I will mention, and maybe all it needed was better direction rather than a different actor.
Red Trailer
Take that shot from the Volume 1 opening where the shadow of her mom is behind the grave and disappears. Otherwise keep it the same.
White Trailer
That opening quote is meaningless, cut it. Also, provided that her actress can sing well, perhaps you can have her sing the song instead. But the bar is pretty high, so it's not worth worrying about.
Black Trailer
I don't know what's up with the quotes, but at least this one makes sense. Still probably cut it.
Cut the "Let's do this" line in the middle of the action, it's superfluous and why would anyone say that in that situation.
"What about the crew members?"
"What about them?"
"You shouldn't go around harming innocent people just to satisfy your own desire for revenge!"
"You know as well as I do that this train, that these humans, are supplying weapons for use in continuing to fight the Faunis."
"And you know that the weapons are for fighting the White Fang, not the Faunis, because we keep harming people!" At this point the spider machine begins activation.
"We will continue this later." At this Blake looks pissed and growls at him.
Make the final cut Adam inflicts at the machine look more like it hits the machine rather than just the bottom of its legs. Then make the train already separating by the time he gets to Blake.
"BLAKE! YOU THINK YOU CAN JUST END THINGS LIKE THIS? THIS ISN'T OVER!" At this point Adam jumps towards Blake's train car. She uses her shadow clone thing and her cloth rope to throw him back on the other one. He lets out a loud, bloodcurdling yell of frustration.
"Goodbye."
Yellow Trailer
The quote sucks again. As well as the random cuts to black during the motorcycle ride. Just do one continuous shot of her riding the motorcycle leading into her parking at the club. Preferably not in the middle of the street.
Make the photo more obviously what ends up being Yang's mom's design.
As much as I like the shot of Junior leaning in for a kiss before getting punched, he would probably be too pissed to do that, so it should be replaced. Perhaps something akin to a "lean in close to let me tell you something" instead.
I'm not sure why the environment continues to be red when the music changes to the Weiss theme, change it to the white sooner. Same with Blake's theme, make it more black. Then for Yang's theme consider making it yellow, although that might look garish so maybe not.
