Fully responsive gallery widget. You ca add unlimited photos or choose simpler version of widget which allows you to add up to 10 pictures
HOW TO INSTALL?
1. Extract ZIP file.
2. Go to the /Adobe Muse CC Widgets/widgets
3. Double-click widget file to import it into the Muse Library. This will launch Muse if it’s not already open.
4. Widget will show in the “Library” box (Window – Library)
Another solution:
1. Open Adobe Muse CC
2. Go to the Library (Window – Library)
3. On the bottom of the box click “Import Muse library”
4. Select file from local disk (probably Downloads folder).
5. Done 
SPECIFICATION:
Software:
Adobe Muse CC
AUTHOR:
Rosea Themes
http://muse-template.rosea.io