Digging up my digital archive I found few very interesting sketches dated 1905-1907.
I'd rather prefer to quote William Brumfield than write in my own words to describe this period and movement:
"The revival of the decorative arts in Russia during the latter half of the nineteenth century played an important role in the development of an innovative architectural movement centered in Moscow and St.Petersburg at the turn of the century.
Known as the style moderne, or simply the "new style", this protean movement corresponded in the broadest sense to its contemporary art nouveau, although in specifics it resembled more closely the Secession and occasionally incorporated elements derived from the arts and crafts revival in Great Britain and Finland.