Tag Question: Leg pose

I've been thinking about these leg poses:
- post #724605
- post #1068637
- post #1070089

Should these be tagged as leg up or is there another suitable tag for it, like bent leg or something?

legs_folded?

One issue solved.
Speaking of which, do these be considered as such since their legs aren't completely folded?
- post #1069441
- post #1068735
- post #1058806
- post #1056536 (the right one)

the first 3:

leg_up / leg_lift / standing_on_one_leg / on_one_leg? entries are all over the place and probably need some cleaning soon and/or clearer wikis.

fourth one might be reclining perhaps?

All the tags pretty fit the pics, but my focus is on their bent legs.
Legs folded just doesn't cut it.

EDIT: standing on one leg & on one leg...now those are something.