Instead of the gallery widget, try three text widgets with an image and paragraph within each. You can grab the image URL from the Media Library – click the image and grab the link from the URL field.
For example:
<img src="https://selademo.files.wordpress.com/2014/08/mg_9371-1.jpg" />
<p>This is a full-width page template. It’s great for embedding a map, a large video, or a contact form. <a href="http://selademo.wordpress.com/page-templates/full-width-page/">Read more →</a></p>
Let me know how it goes.