This is a short workshop with Savvas Giantsis focused on finding the right body position when doing bent or straight arm Baksana (crow/crane). Wow he makes it look easy but he also gives some great tips for finding that ease yourself.
It can be a bit daunting and definitely tricky to jump and land on your arms for postures like Bhujapidasana. I seek out the help of Matthew Sweeney to shed some light on the subject. He also nicely breaks down the breath and the vinyasa.
Pashasana is the first posture of the Ashtanga Intermediate series and can be quite a challenge. What to focus on bind or heels down? Matthew Sweeney has some useful tips and even talks about the transition out of it.