> there's no direct way to click to January 2015 from the results, which really sucks. (Instead you have to go back out of results and use their fiddly scroll to get there.)
It's amusing how people's insights can turn myopic. Search in photos is the killer feature, and it even solves the problem that you have.
If you realize that you need to see photos from January 2015, don't try to scroll back in your photos feed. Just do a second search for "January 2015".