I saw "Winds Of Change" when it was first called "Metamorphosis". The biggest difference was the total lack of dialogue. This original version did not feature the Peter Ustinov narration, standing alone on the musical score and the imagery.
Comparing the two, the earlier version fares better. I enjoy Ustinov's wit, but it wasn't necessary here (except in the minds of some narrow minded distributors, perhaps, who forced the narration on Takashi).It's like "The Thief And the Cobbler". I love Johnathan Winters, but there was no need for his ad-libbing.
Unfortunately, it is another great work of animation sentenced to moritorium hell, like many of Takashi's fellow pioneers of Anime. Just try to find "Gulliver's Travels Beyond The Moon" ("Gariba no uchu ryoko"), "Alakazam the Great" ("Saiyu-ki") or even Nelvana's "Rock & Rule".