So, let's get this started.
Story: 8/10
For a hentai, it has somewhat of a good story. It was satisfying and enjoyable. More plot could go a long way, but don't forget that is this a hentai and they don't (alot of times) revolve around plot. ;)
Art: 9/10
Love this artstyle. One of my favourite artstyles and made me enjoy it alot more overall. It looks beautiful and smooth. Reminds me of some of my favourites, guess I can't blame myself for liking it. Many scenes were made in outdoor environments which looked fantastic.
Sound: 8/10
The sound isn't much different from what else I've heard. It's good, the quality is perfectly fine and I don't see anything wrong with it.
Enjoyment: 9/10
Definitely one of those I enjoyed the most. Unlike other hentais, everything wasn't focused on massive breasts, which is a + on my side. Scenes looked great and were very enjoyable.
Overall: 9/10 (8.5 but I'll round it to 9)
Overall it is a great hentai. Really enjoyable, lovely characters and beautiful scenes. There isn't much in my book to bring this down. The only thing that bothers me is that it's only one episode. There is alot that could be built off of this. Definitely would watch this again someday if I happen to remember or find it.
