You should share the URL to your demo site if you want to get feedback.
Hi @Toshiro-Yamamoto, I am sorry to say, but the item is not up to the marketplace standards and is incomplete.
A couple of reasons:
The design is basic, lacks uniqueness, the “layout” of your template is also basic - on the homepage you literally have a header section with background and some lead text, followed by a whole section full of just text, then a whole section of just a background image, etc.
ThemeForest Requirements : here are the general requirements for submitting an item to Themeforest.