When I started off making the manga I was doing it by scratch. Not knowing much. But after the first bunch, I think few pages I realized I could use Clip Studio Paints assets more. They were free after all. I started to used the 3D models to pose them. Takes a bit. Then used different brushes, materials and content to enhance it. Brushes for fire, flames, lightning, shadow, divine light and more. Environments, perspective and so on. Plus tons of reference materials. 
I do plan on going backwards a bit to update the older pages when I have time and are capable with my brain injury.

Older Page – Old Style
Newer Page – Newer Style