In WordPress Dashboard go to Appearance submenu and click on Customize.
After clicking on customizing you will in theme Customizer.
Here you have to click on Page Template than Gallery Page
In Setting, Here you can Hide/Show Gallery & Newsletter Section .
Go to Customize -> Page Template -> Gallery Page -> Setting
In WordPress Dashboard go to Appearance submenu and click on Customize.
After clicking on customizing you will in theme Customizer.
Here you have to click on Page Template than Gallery Page
In Gallery Here you can Change Gallery Section .
Go to Customize -> Page Template -> Gallery Page -> Gallery
In WordPress Dashboard go to Appearance submenu and click on Customize.
After clicking on customizing you will in theme Customizer.
Here you have to click on Page Template than Gallery Page
In Gallery Here you can Change Gallery Section .
Go to Customize -> Page Template -> Gallery Page -> Gallery
You have to use Gallery Image Size 480Px X 320Px