The first one is from Beniecke, from Anna Virburova's album. I don't know which one.
Aw, the second one is one of my favourites. I think that one can be found in one book
Nichoals and Alexandra: The last Tsarist Russian Family. (I don't know precisely, Sarushka probably got better answer than me,maybe there is caption under photo). I think it is from Olga's album for years 1915-6., since that one was taken at Mogilev.
Thank you Irina, it is nice to see some photos again.