the loose-hair look pertained in 1895 for the swan maiden ensemble as well as for ivanov's snowflakes in '92.
the 'bun head' is a later, rote, detail.
and the costumes are lovely too!! ...for what i can see they were also simple, soft and loose, so no stiff tutus ah?...(kind of TPDD alike)
Thank you so much Mr. R.G for this valuable information!