If you install vanilla OpenCart it contains small sample data which consist of some sample products, just to give you idea how does your actual products will look like at various screens. Normally you want to go and replace those products with your actual products before you go live.
One of the major component on home page is “Carousel” which highlights certain products on home screen. You defiantly want to replace those products with those which you are important for you. You may also want to add more products to carousal so that it looks full because out of box it just contains two products, so it kind of look empty.
Steps to Edit Carousel
Log in to OpenCart Admin Panel.
Go to Settings>Design>Banner as shown in below image.
Click on “Edit” of “Home Page Slideshow” option and it will lead to page where you can add or remove items from carousel.
If you want to change existing product image click on image it has link to replace current image using which you can select image of any other product.
In case you also want to set link for that product so that when user clicks on image from carousel it will lead them to product description page of that product then you need to set “Link” option as well. This is relative link to your store so to find out which link to use go to your actual store, search for that product and copy that relative path from url as shown below.
Save all changes and go and refresh your store. You could see new carousel on home screen as shown below.