Here is the history of this asana. Between the first picture and this picture are more than one and a half years!!!
Mayurasana is one of the poses I thought I'd never be able to do. It's a men's pose was my conviction. This might be true, but women can do it, too.
Once I saw a Youtube movie of a woman, 80 years old doing this pose. I was amazed. It must be possible I thought.
Often I only imagined this pose. I was on my mat put my hands in position and this was it. And then came the moment and I could balance for a fracture of a second. This made me optimistic again, very optimistic. I tried again and failed again and again and again.
For quick 3 breaths I can hold this pose now. I wobble, I don't care. I'm sure now also this pose will improve.
The trick is: Tthe hands must really press into the floor. The elbows should be kept together. The weight of the body moves forward. Abdomen must be engaged. The back is rounded, nevertheless I try to open the chest. This movements in different directions must give stability.
Strength is needed for sure.
Mayurasana is a balancing pose.