Nesterov was one of Empress Alexandra's favorite painters, his picture of the Annuciation hung in the Mauve Room. He worked for Grand Duchess Elizabeth in her Martha and Mary convent in Moscow. Here's a bio.
Zooms of Hagia Sophia and other Monuments
Here's a great page of ZOOM views of Byzantine monuments in Constantinople - Tsargrad - and elsewhere.
Imperial Bedroom
Portrait Hall
Mauve Room
Maple Room
Aleksey's Bedroom
Nicholas's Study
Aleksey's Playroom
Formal Reception
Balcony View
Aleksey- Balcony
Children-Mauve
Nicholas's Bathroom
Alexandra- Mauve
Nicholas's Reception
Tsarskoe Selo Map