One Page Portfolio made it easy to create one page portfolio using pinterest-like style.
Check whether you choose the category which you publish your works posts, then add a shortcode [opp] to your portfolio page.
The full size images will not be displayed on your portfolio page, you need set feature images for the posts, so the thumbnails can be displayed.
You need add tags to your works post, so you can choose them on setting page.
If you don't choose any tags, then tag filter will be disabled.