Long ago in a land far away . . .

Isn't the first image in your post already bordering on being a spoiler?

Since...well, you-know-what happened and all.

Technically, no, because no one's going to get the joke unless they got that far. I dunno, depends on how anal you are on that. But to me, it isn't because most people that doesn't watch the show, or haven't gotten that far won't understand the picture.

[spoiler=Do not click unless you've seen up to episode 4]
Besides, her head's still on, iirc.
[/spoiler]