This counts as safe?

It's a tutorial... Wait, wtf, the artist drew her organs.
Why the hell did he mean with that... Oh, manI REALLY WISH I KNEW JAPANESE.
Moving up to rating:q? Or e?

It's good to know how the skeletal structure works if you wish to know how to draw anatomically correct pictures

Wow, do I really need to draw a womb everytime I want to draw a girl.
Haha, just kidding. I understood your point, Azarel. The artist probably wanted to illustrate better his examples.
I do not know, because I don't understand Japanese.

And this artist made the best tutorial on this pool, it's gorgeous.
I spent good hours "reading" it.
The clothing part is also awesome. And the heads and hands example.

Well, that doesn't really looks like a vagina. It just a part of the reference line that splits the body in two halves.

I was referring to the drawing on the top left. Are those her bones or something? I couldn't understand well, I just got quite surprised, never seen those on tutorials before.
I don't think they are only reference lines, but maybe they are there for reference too?

Debbie said:
I was referring to the drawing on the top left. Are those her bones or something? I couldn't understand well, I just got quite surprised, never seen those on tutorials before.
I don't think they are only reference lines, but maybe they are there for reference too?

As for the top left drawing, to me it looks like some sort of socket, where you are supposed to put the shoulder and the arm. See this one: http://moe.imouto.org/post/show/118452/kuroba-tutorial

Oh, and do you guys think this image should be rated explicit? There are other on this very same pool that are just as revealing (boobs and Barbie's genitalia) and are rated safe. Like these:

spoiler

busaiku, try this http://moe.imouto.org/help/dtext

I think all kuroba tutorial deserves a translation.
It's huge. But if I have the chance, I will do it. spoilerWhen I learn Japanese
And thanks SciFi for the link.

Debbie said:
I was referring to the drawing on the top left. Are those her bones or something? I couldn't understand well, I just got quite surprised, never seen those on tutorials before.
I don't think they are only reference lines, but maybe they are there for reference too?

(referred post #134165)

There are some essential horizontal lines abstracted form the skeleton, in addition to the most important median line.
Under perspective, those lines are drawn as rings wrapping around the body.