Having stood out as a capable painter and friend of Ivan Shishkin, Marszewski won two silver medals for his paintings of the Neva and Ravel.

After graduation, Marszewski extensively traveled Europe, painting local landscapes ranging from Spain to the Tatra mountains, as well as portraying Vilnius and its surroundings.

He settled in Warsaw around 1872, however in the following year lost a large amount of money he had deposited in a bank, and as a result fell into a deep depression which would develop into a mental illness.

[3] From 1853 to 1856 he studied at the Imperial Academy of Arts in St. Petersburg under Maksim Vorobyov,[4] where he won two silver medals for his paintings View of the Neva During the March of Ice and Revel.

Despite his travels, Marszewski retained contacts with his former Academy and in 1870 received the honorary title of "Class Artist", 1st Degree, for his painting View of Menton.

[5] In 1873 Marszewski lost a large amount of money he had deposited in a bank and as a result fell into a deep depression, which eventually turned into a mental illness.