Hello Avelino,

You should create featured listing box width position top. Also you should have featured listings. Then Gallery take listings from this box.
At first go to Admin Panel >> Listing Types find type and click edit. Then find config group: Featured Settings and line: Featured Boxes set Yes and click edit button. Then go to Admin Panel >> Content Boxes and find this box edit it and set only for home page and with position TOP. Save and check home page again.