Having abilities to draw from the early age, Semionov entered Tavricheskaya Art School, where he studied under Alexander Gromov, Semion Bootler, Victor Oreshnikov, Vladimir Levitsky and Mariam Aslamazian.

In the Russian Museum he painted copies from works of Ivan Shishkin, Ilya Repin an Isaak Levitan.

In the same year as one of the leading painters of Leningrad, Semionov participated in the All-Union Art Exhibition in Moscow dedicated to the 40th anniversary of the October Revolution.

Semionov embodied it in countless sketches and paintings, and made a significant contribution to the contemporary iconography of Leningrad.

In cityscapes he aspires to transfer the sensation of street, movement, to keep on a canvas the peeped scenes of a city life.

The great attention he gives to light and shadow contrasts and plain air effects, to transfer volumes of urban spaces.

The artist liked to paint Leningrad in rainy weather, masterly transferring game of color stains on wet asphalt.

Semionov's paintings are distinguished by finesse plain air, bright saturated colors and accurate transfer of tonal relations.

His paintings reside in art museums and private collections in Russia,[19] Japan,[20] the US, England, France, and throughout the world.