Portrait painting by Valentin Aleksandrovich Serov, LeadArt oil painting just do reproduction of them in museum quality on linen canvas:

Valentin Alexandrovich Serov (Russian: Валенти́н Алекса́ндрович Серо́в; January 19, 1865 - December 5, 1911) was a Russian painter, and one of the premier portrait artists of his era.
The best works of Serov are among the greatest of Russian realistic art. He taught in the Moscow School of Painting, Sculpture and Architecture from 1897 to 1909), and among his students were Pavel Kuznetsov, N.N. Sapunov, Martiros Saryan, Kuzma Petrov-Vodkin, N.P. Ulyanov, and Konstantin Yuon. A minor planet 3547 Serov, discovered by Soviet astronomer Lyudmila Zhuravlyova in 1978 is named after him.