By the way in reference to the crystal foxes, I thought they were not very convincing CGI. On watching the second time today I was thinking how to cut them out completely, unfortunately that doesn’t seem possible.
Apparently they were animatronics that were physically there, according to a John Boyega interview. So at least some of them weren’t CGI.
EDIT: not the interview I was referencing but there is a video about it
http://www.starwars.com/video/the-evolution-of-the-crystal-fox-star-wars-the-last-jedi