You can change the appearance of the portfolio. To change or add new layout go to Portfolio Layouts > Add New.

In the right side, you will see Name to give a name to layout in below you will see Shortcode to view this layout anywhere you want. And if you use KingComposer then you don’t have to copy the shortcode. You will find this shortcode automatically in there. After then you will find Layout. 

From here you will change the layout of the viewing portfolio. You can also find filter, pagination, etc.