Advice

What needs to be change is one the story
It's too fast and simple and we don't even understand what the character past even is completely.
You need to draw the characters not use 3D models. It's alright to use 3D backgrounds everyone used them and also use 3D figures to help with drawing the characters movements and poses. If you wanted the characters to be 3D, draw first then 3D model not just 3D models then move on to another chapter.
The story feels like it just came outta of your head then into the drawing process. That's a big no. You should try writing first and understand how to progress the story better with Character development and other stuff. Also people tend to forget this but make a character that would be different from everyone with their own unique taste and personality.
The point is there but if pacing it too fast would be bad so I suggest firgure out how to pace it better and also do better with the fighting scenes. It won't work if you can't transition through panels and where they move and go. Like walking to a palace. You see the character walking then the next panel shows where he is going, the palace.
It's better to write a novel then reread it with others and you can make a story that is interesting that many would love it or hate it.
Make sure if a comment is made about your book make sure to read them and do your best to improve and figure understand what to do next on your next book or chapter.
I don't know if you'll read this but from a beginner in writing and knowing how to make stories. Creative writing is a way to begin if you know how to make that creative story a good beginning, middle, and end. And because this is just a comment. I don't have to write properly to make this. (￣∇￣")