This was good until you made the JOJO setting part of the RWBY setting.
It would have been better if you just left Jaune as a expy.

"srange"

It's understandable. Wish you a good continuation!

i cant help you with that but use as much bullshitery as you can...

Whoa that story is one heck of a ride that's for sure!
I just love how you managed to mix the elements of both franchises.
And the references are awesome!

The fight scenes are great too, I don't know why you think they're not good...

Anyhow! I'm really curious to know what you'll make of this story, I look forward to for more chapters!

You could have jaune have a cognitive reset related to his body kinda like his body and mind aren’t in sinc enough to work at a constant peak efficiency or have the opponents he goes up against could be smarter part of the JoJos bizar adventure fun is the fighters finding unique and innovative way to use there ability’s and skills to go up against the opponents. I mean when watching as an example most if not all of jotaros fights you kinda know things are going to turn up for him but it’s how the fight develops and what the fighters do. So I’d suggest kinda be creative think of how the opponent could both get info on how jaune works and fights so they could better manipulate the situation to suit the fight.

So ignoring the random shit I expected the reason to for Raven the next chapter. Instead what we get is multiple chapters of random what if and omakes, wtf? If you don't know or can't write up what is going on just after you say it is coming then just fucking say it.

I am out of the crack that is this story along with the shit that is your lies.

Referenced dio got killed bad guys 101. It was cool seeing (reading) how the fight showed off this spesific Jojo part of jaune. The hugging yang and the endearment of velvet were a nice touch.

I fucking love that tommy gun scene. But let me ask you this, who is Jaune's rival, is it still the salad?

So joseph inspired jaune now poor Pyrrha this was her literal beta shot to live out Blake’s tails. What’s next Jolyne Like he’s on rotation with the bloodline . I fell bad for little ruby now and yang probably will never forgive her mother now. Velvet got lucky with that save. Good chapter

Cool I like where this is going it might have been a touch short but it set up a lot of potential plot threads.

Vampires in da hood

I wonder what the stands power is...hmmm maybe a Cupid attack? Like it can shoot arrows from its fist that do damage based on how intense the emotions you have for the target of the attack?

As for ships, I don't recommend touching upon that subject until one becomes clear in your mind, like, after enough adventuring, trying to stop the fang, Jaune will have learned to trust one person over the rest of the crew.

What X3 has just recommended is not a bad idea, White Fang dig up the pillermen, try to use them against humanity for their "equality", Jaune and friends go out to try and stop the fang, learning about all the cool stuff that the Joestar's had, to which somehow Jaune inherited, badabing badaboom, you got yourself a good concept.