I like how you demonstrated the phrase " Show, don't tell". Compared to other works that seem to rely on too much dialogue or written world building.

For manga making I recommend trying clip paint studio. It has tools for making manga. It's even what I use to make my works.

Per page make sure there is a panel that clearly shows the background the characters are in. Right now it feels a bit jarring where they are. when it goes to flashbacks implement visually what makes it different than the modern setting, like instead of "FST Flashback", try out coloring the page black, grey or screentones except for the panels of the page. Your panels have too many close ups, it needs a nice balance of far away shots, and close ups. For some of your pages the panels feel wacky, try to implement simple page layouts. for action scenes try to implement panels with some perspectives, think like how your fav manga have done action scenes. I hop you use your passion for drawing to making more manga. Just make sure to improve one step at a time.

Gotcha, but I won’t back down from harsh criticism. Even if ik my one shot is cringe🤣.

True, for me I tend to be a perfectionist who procrastinates🥲. I plan on making weekly manga so I can build up the skills to get into weekly shonen jump🔥.