Very nice, Alex. I'm always game to stick out my neck and wait to get my head chopped off. I learn that way, too.
The first photo made her look kind of stubby, but others look O.K. Interesting pattern, sumi seems to be coming in at the right places (but also a couple of stray marks ... but if she was perfect nobody but the Chairman of Toyota could afford her!). Notice how Momotaro kohaku & sanke always have very nice shiro and a slight tint that shows thru the thin skin on the head? The guy has high standards. Patterns may be "all over the place", but I don't see any but high quality koi with his name on them. And, this one has a nice pattern. For this size, the percentage of body represented by the head seems consistent with growth potential. A more pleasing fish than most Momo koi I've seen listed for sale, and since appearing in K-B, he has been exporting a bunch to the U.S.
I do not know how Momo kohaku & sanke develop.... whether they lengthen proportions similar to Nogami kohaku, or what. So, I'm interested in what happens. Keep us informed.