The artwork is very good, lots of atmosphere - I think those magnified close-ups help a lot for that. Translation is good, thanks for sharing this with us!
Really interesting stuff, I enjoyed how their relationship was explored through these little vignettes. At first I was sad because I enjoyed the first story, and I wish it was expanded on. But when you go and read these stories as a bunch of short vignettes (which is how I'm sure the author intended them) you get a better feel for the atmosphere. Which as mentioned before, was really good. Kuma does a good job of getting those feelings across to you in a short time.
Also, going to the next page and seeing the giant cat's eye scared the shit out of me the first time. That was awesome.