Please help me set up Galleria

Hi all,

I know this is supposed to be simple but Galleria does not work for me.

This is what I have done:
1. Installed Galleria (version 7.x-1.0-beta3)
2. Installed Library and copied Galleria library (release 1.3.3) in the requested folder (as per instructions)
3. Set up a new content type with an Image field and Media Selector as a Widget
4. Manage Display settings are set up to use Galleria as a format. I have ensured this applies to all displays (Default, Full Content, Teaser)
5. Galleria 'Option set' is set to Default
6. Created content and uploaded 3 images

They are now being displayed the one under the other as it would show if it was set to Image and not Galleria.

* config/media/galleria/advanced is showing it recognises all files and folders (see attached screenshot)

Can you please provide some help with this.
Thanks