Hi Krishna,
I’ve been looking over your feed, site, and the images, and I don’t know why, but it looks like Google just isn’t indexing some of your images. And if they don’t index them, they can’t display them next to your articles.
The GN Publisher feed is working and looks correct, it’s not an issue with the feed.
If you go and look at the images from your site that Google has indexed over the last week, you’ll find some are missing:
https://www.google.com/search?q=site:rnbjunk.com&tbm=isch&hl=en&tbs=qdr:w
for example, it has not indexed adele-festa one nor the never-gonna-not-dance-again one.
Since the problem is not related to the feed nor the plugin, there’s nothing that can be done within the plugin that will help.
I know you’ve posted on the Google News Publisher help forum as well, and I’ll continue to try to help you over there, but honestly, from what I can see and do publically through a forum, I’m not sure why these aren’t indexing,
Chris