In order to make your content more shareable, you need to invest some time on creating high quality graphics for your site. You can always use Photoshop or online tools to do it fast. WPCollageMagic can also help with that. It is a handy plugin that saves you time creating gorgeous collages.
WPCollageMagic has a fully responsive design. It comes with everything you need to build unique layouts for different screen sizes. This plugin also lets you add cool effects and text overlays to your photo collages. It has over 15 prebuilt templates for you to get started. There are also 9 CSS image filters for your photos. WPCollageMagic lets you export your projects across your websites as a JSON file.