How to find auto-awesome g+ images, like panoramic, motion, mix, smile, hdr:
go to https://plus.google.com/photos
click on the "search for your photos" box
for panoramic photos type pano or
https://plus.google.com/photos/search/pano
for motion photos type motion or
https://plus.google.com/photos/search/motion
for motion photos type mix or
https://plus.google.com/photos/search/mix
for smile photos type smile or
https://plus.google.com/photos/search/smile
for hdr photos type hdr or
https://plus.google.com/photos/search/hdr