Here are some of the many difficulties that I witnessed/experienced in my carrier :
Almost all japanese veteran animators work only on traditionnal, with pencil and paper. Most of them see the potential of digital animation but letting go of old drawing habits is hard for them.
Japanese studios usually don’t sign any contract with freelance artists. Mutual trust and verbal promise are key. That’s one of the reason why it’s so hard to get to work with top class artists. You need to reach them via someone they know and trust
Business card is a must have in Japan (unless you are already a really famous animator/director)
There’s a big mutual misunderstanding about what is «japanese style», «french style», or «american style». Styles are very diverse everywhere, but some have their own narrow image of what is *japanese animation*. That can lead to severe misunderstanding
Be sure to hire the artist that fits your project’s need and don’t force him to work in a different style. That basic rule also works in Japan..
Working with japanese artists and create beautiful/succesful projects is possible. It has been proven many times already. But it’s not easy. It’s a long background work.