Images not visible in Android devices

I recently created an image gallery and a ‘news’ item / article which has images within it. Neither the gallery images nor those within the news article are visible on any Android device, yet all the other content on my website is visible (as is the text of the article).

My web designer thought that the Gallery issue was a problem with the NextGen plugin I am using (as there have been various other issues with NextGen as well). But the News Article was created as a ‘Post’ within WP, & the images were all uploaded into the WP media library before inserting into the post – so they have nothing to do with NextGen. Has anyone else had this problem? It is very recent; Articles and galleries I created in June/July this year do not have this issue.
NB: the link to the News item is here:
http://www.placesandseasons.com/the-cure-salee-festival-2014-review-and-videos/

In case anyone thinks it is something to do with NextGen, I am using Photocrati NextGEN version 2.0.66.29, Photocrati NextGEN Pro version 2.0.