Hawk owl painting WIP

In this Hawk Owl painting I tested very limited palette. First I airbrushed background layer and shape of this wonderful owl. Next step was drawing shape of the dead pine and the bird over the paint layer.

In third stage I scratched all light areas and birds details. I painted several thin acrylic layers over shadow parts and bird. Result feels interestingly 3D when you look at finished painting.

Ready painting: