I see nothing wrong with wearing a bright pink polka dotted robe!
I want one 
Tsaria,
Indeed I am envious of you. You are very fortunate.
If I could share with some other information with you, which I know, in respect of the day-clothes of The Grand Duchesses.
Four times a year, regularly for every year from about 1907 until 1914, the Empress would order the clothes of the Grand Duchesses from La Maison Worth in Paris. La Maison Worth was an exceptionally elegant, but clean-lines, contrasting colors kind of elegance, devoid of so much of the English-inspired Victorian frou-frou.
La Maison Worth was located at the very prestigious 7, rue de la Paix and was founded in 1858 by Frederic Worth. As a testimony to its greatness, it lasted until the Germans occupied Paris in 1940. His progeniture were one of the few couturiers that would not colloaborates "avec les Bosches". To this day, his top-of-the-line perfume, entitled "Je Reviens" is still sold on the market. It is a light, air, fragrance.
In any cases, four times a year, a considerable amount of gold roubles were transferred to the Imperial Russian Embassy in Paris for the purchases of day-clothes for the Grand Duchesses and in some case the Empress herself. It is always easy to tell when the Empress is wearing a Worth creation, as it is with the Grand Duchesses. For the Grand Duchesses, everything was ordered the same and the measurements were always transmitted in the Diplomatic Pouch. The task was delicate enough the befell the wife of the Russian Ambassador in Paris. If she blabbed about the amount of money involved, her husband would have lost his job. He knew that and she knew that.
Worth was not a cheap couturier by any means. He designed and developed a quality line and charged and was paid for a quality-line. It was truly a classic-line, one that favored pastel colors, but clean ones, and contrasting ones.
The ordering only stop in 1914 with both the advent of the war and tenuousness of the Emperor's position. The amounts spent on clothes were considerable, in spite of what many report about Alexandra's frugality.
Please look at several of the simple-lined summer dresses of the Empress, particularly the white ones. If the label remains in it, you will see that it says "Worth - Paris".
Regards from Shanghai,
A.A.