WALTR 2 does not recognize, transfer or support images within the current release.
Here’s a little back story behind this:
Images support was in our plans from day one. However, because of iOS restrictions, pictures imported by 3rd parties cannot be removed straight from your iOS devices. This meant that we would need to create additional parts of UI that will help you delete images (which contradicts ultimately with the idea of minimalistic UI with no buttons). Therefore we decided to postpone this feature for the next releases.