Ara - wip in cp

Here is a small wip of a ara in colored pencils.
I've drawn the bird using both grids and tracing. I was getting quite cross-eyed with the feathers using grids, so I checked and corrected with tracing afterwards.
I made a "grisaille" pattern with a dark-violet color, and added local-colors upon; A variaty of blue hues.
the drawing measures 10 x 20 centimetre, but it took around 12 hours to complete, due to many layers....