Maybe you could accept Winter Soldier for Bucky? Because even though it's longer, I thought of him with that name first, only then did I realize you probably want to accept him that way.
Then, but this really is nothing, for Sharon Carter you have S.H.E.I.L.D. instead of S.H.I.E.L.D.
And finally, Black Panther is Wakandan, not Wakandian.
Otherwise, great job! Do you have quizzes like these about the other movies?:)