Yeah but theres still a lot you can work with, theres that one 1928 poster with the red overalls and the gloves for example.
Also with things like personality traits not being copyrightable the only thing left in the way would be title and trademark stuff
https://www.amazon.com/Mickey-Mouse-Cartoon-Promotional-Poster/dp/B07N99472D?th=1
This poster was also included and it has the colored design, also steamboat willie is the name of the boat