Yo Doublekey!
Wow your comic dates to 2020! That means a lot of what i'm going to say, you probably already figured out by now since 4 years have passed and you're (i would assume) a waaay better artist now. Actually your comic reminds me of the comics i used to make when i was in highschool!! I used to draw kind of like you but instead of the Araki style, i was using the Akira Toriyama style and then the Tite Kubo style! 
First of all, minor thing: Your prologue is a manga and the rest is a manwha so in your reboot try to keep with one style because if someone for example doesn't want to read a manga format, he will assume the rest is like your first page and vice versa.
Secondly, since like i told you you remind me of me, i have some good tips that will help you just like they helped me.
First of all, your characters are too stiff, they feel like they're compressed by a ROADO ROLLAAAAA and not in a 3D space. Here's for example a random panel i screenshot with a couple of advice ( i didn't tackle the background but let's just focus on character's for now or else this will be too long)
Construction is KEY in making characters believable! If you apply solid fundations from the start, your character will feel alive and not feel like those old medieval church paintings in full 2D.
And finally, you need to make sure the readers can understand perfectly what is going on in your story. Since the two main brothers in chapter 1 are so much alike, i had difficulty understanding who is who when they were talking. They look exactly the same almost! You have to make them more different in your reboot, because this is probably your biggest problem in my opinion. I only read chapter 1 because of that, because my head started to hurt trying to understand every time who is talking, i shouldn't have to do detective work to understand, it should be fluid like water. It's not just because your chara look the same, it's also because you tend to make them face the same direction when they are talking, i swear i thought the brother was talking to himself in the kitchen at first. Here's how to fix this:
This is your normal panels:
This is my fixing:
But it's still not good because they are clones, their hair color is the exact same hue of grey and even the bandage on the forehead is exactly the same !
Like this it's waaay better, readers will read it with no difficulty:
I looked at chapter 7, you still have this problem of the two characters looking alike ( but in the cover that problem doesn't exist because they have different hair color). A good technique is to draw your characters bald and see if people can differentiate them. You must not rely on just hairstyle.
That's for the drawing aspect.
For story, i can tell this is heavily inspired by Jojo part 1 ( wryy). That's cool, it's good to have inspiration. But if you remember correctly, it took 2 volumes of almost 200 pages each to reach the point where the manior collapses when Dio becomes a vampire and fights against his brother. For you, it only took a chapter, so the pacing is going at LIGHTSPEED. You have to slow it down in your reboot, because we don't know anything about the personnality of your characters, about their settings, about their daily lifestyles, family dynamics, etc. And we are instantly in the action without caring for them. You instead use narration to tell key things! But remember this sentence: Show don't tell. Comics are not novels. You use way too much narration, this should happen in front of our eyes, not said by a narrator ( or at least not in this extend). If you transformed those texts into drawings, i think you would have solved all the problems i've listed above about your story. Set the premise correctly, make us legit care about the characters. Action is cool, everyone likes action. But action become 100x better when you understand who is fighting and why. That's when we relate! 
I hope this will help you for your reboot!! I have no doubt it will be way better and if you apply everything i said, it will be excellent
