Sure it is accessible - I just set up the nfs share myself.
All the images are listed when I give ls -la /nfs/MIRROR command …
$ ls -l /nfs/MIRROR/
total 748
-rw-rw-r-- 1 pi pi 157448 nov 16 13:18 IMG-20161116-WA0004.jpg
-rw-rw-r-- 1 pi pi 90988 nov 18 14:07 IMG-20161118-WA0004.jpg
-rw-rw-r-- 1 pi pi 188982 nov 25 13:30 IMG-20161125-WA0002.jpg
-rw-rw-r-- 1 pi pi 197352 dec 8 23:55 IMG-20161127-WA0023.jpg
-rw-rw-r-- 1 pi pi 117901 dec 14 12:01 IMG.jpg