It's ver nice.
Like the guy under My review said; "It's really cool to watch You draw and animate."
At some points I didn't understand what You were doing, however it ended up in something good, and I'd be like "Oh, cool.".
Anywho, You shouldn't actually adress this as 'hentai', You'll have all those wankers, who come up here, expecting to get to see hentai, and they get this animation, let's just say those guys are probably 70% of the people Who call this sick and stuff.
Anywho, I'd give it a ten, if it weren't for Her boobs, I know of the nipples but that's not the reason, it's like said before, also; They seem baggy.
Other then that it's perfect, and if anyone thinks differently, they can try this themselves, and fail, most likely.
Keep up the nice animations, peace.