This theme features a portfolio page. This is an image-focused gallery-style page where the images link to what are actually blog posts in the back end. To add something to your portfolio, simply assign the “Portfolio” category. These posts will be excluded from anywhere on the site that is supposed to be about blog posts and will be highlighted in places where the portfolio is linked.
Once you have created a portfolio post, you can save it as a template to be used for your other portfolio pieces so your work is shown in a consistent manner. (Page Settings>Summary>Templates>Default Template>Create)