[dagw]

Well this picture is proposed be from when he was a teenager, before he ever went to art school and long before he became a professional artist. It's not unreasonable to assume that his art style and technique can have changed significantly since then.

[elcapitan]

Ok, I see. That makes the attribution totally bogus of course, because it could be attributable to just anyone then. Like taking the paintings of a 5 year old and saying it's a very early Renoir or something.