A frequent theme in 'Winnie the Pooh: Blood and Honey' fanfiction is the transformation of the characters. Since the movie gives them a much darker and more menacing makeover, fanfiction often dives into how this transformation occurred and what it means for the story. Also, survival themes are common. Given that the characters are now a threat, the fanfiction might center around how other characters (either new or existing from the original but with different roles) try to survive in this new, terrifying world created by the movie's concept. Additionally, the theme of lost innocence is often explored, as it's a huge contrast to the original Winnie the Pooh stories.
The idea of a forest flowing with milk and honey in manga could symbolize a place of extreme prosperity and fulfillment. It might be used to convey a sense of wish fulfillment or a utopian vision. Different mangas might interpret it in various ways based on their themes and genres.
I'm sorry, I don't have a specific 'Winnie the Pooh: Blood and Honey' fanfiction to recommend directly. But you can try searching on fanfiction platforms like Archive of Our Own. There might be some interesting stories created by fans that explore different aspects of the 'Winnie the Pooh: Blood and Honey' universe.
I don't know for sure. It depends on the licensing and distribution rights. You could try looking directly on Manga Rock or checking with other manga enthusiasts who might have the answer.