@Matthieu, I just finished unpacking the Poppy ! 
I found a picture that you recently published and I do not recognize some parts, can you confirm this from my montage if we have or not the latest version (is your picture showing the latest version ?).
Orange, my Poppy’s hips are the same as those of the Red Poppy built in the Cité des Sciences in March (version 1 or 2 anyway?) while they are in three parts with you (we have a “structural piece” missing from the printer that we’ll receive in the week but we don’t know which one).
Green, it is the “small parts”, we have less than you …
Finally, according to the parts list that I downloaded (in a recent post), it seems that the only missing piece is the knee_bumper (doesn’t look like a “structural piece” …).
If I understand correctly, there is still no passive feet with springs?
Edit : Every reason to believe that the missing piece is a second white piece (3D printed), the “structural piece” (Connector HN07-N101_FR05-S101).
The FR05-S101 (metallic from Robotis) part would be a provisional solution.