Barn owl drawing update

The plumage on a barn owl is one of the most difficult things ive ever tried to capture effectively in graphite.as you can see from the photo progress is very slow as i try to re-create the subtleties of the feather details whilst maintaining the shape and form of the bird.I am trying to concentrate on the bird as a 'whole' and not get carried away with individual feather details and placements in an attempt to convey the overall softness of the owls feathering.this one will be on the board for a little while yet as ive got the upcoming marwell show and art market to concentrate on this week as well as an upcoming workshop i'm hosting on 4th september