At Present, This Design Does Not Work
The design mostly printed well, the tolerances are very tight. I recommend sanding the parts in order to have them slide properly against one another. Additionally, the female holes for the sword and the female holes for the box do not fit the male connection points.
Unfortunately, at present, there are no assembly instructions, and even if you get this model printed, it is nearly impossible to put together. There are too many possible combinations of the pieces, and you can't know if you've arranged them correctly for the puzzle.