Since it's been a long while since I was drawing for fun, I always go back to figure drawing first. First I copied the Loomis mannikin figure, and then tried a couple of poses from imagination below that.
Loomis LVL6 EXP10
top 2 studies from the Loomis book.
More Loomis studies and 1 page with no reference (ouch, needs lots of work :P)