me too, I think it 's the best study I've ever seen you do.
600 lb! wow heaviest I've seen is 300, looking at so much Tunnicliffe lately and a lot of his studies are done on toned paper, wonder what he used. Maybe you know? I'm trying out some toned Swarthmore just to see, the good part is the tone provides the mid value so all he added was darks and lights.
RE the eye thing, Tunnicliffe had incredible eyes to do all that engraving illustration, then later in life when he had diabetes he could not do that or see so well anymore and it caused him great frustration. As my own eyes are not sharp anymore like when I was younger I've been thinking a looser style has advantages as one can keep painting in to later years with no loss. So I'm really for having it look detailed by suggestion without having to make it have every little thing, but there is some fine line without some precision the pattern is not good. In yours the balance is perfect. BTW LJ said he tries for what I just described and does not want to do every little detail, I saw him use reading glasses now and then at BIA