before publishing read your story on the app, some code looks diffrent there and what is on your phone.
You dont need amazing codeing, but do make sure it dosent have mistakes. like faceing wrong way, charaters keep talking when they arent because its a loop animation and stuff like that
rear animation face the opsite way, rear is them turning their back . if they face right, they will face left in rear.
focus on the charaters NOT the background, I see often new authors pan and show the entire background, its a waste of time, only times where its okay to show off background is places, like a look over the city, our looking up and the stars.
dont use default charaters or outfit, it looks lazy. like you have not put any care into the story.