He is especially known for his series of self-portraits, dating from 1895 to 1922, which at the same time illustrate the evolution of his style and technique as well as the changes in his physique and character, and is the largest such collection in Serbian painting.

When his father died, in 1900, he decided to quit his studies and move to Modoš (today's village of Jaša Tomić, in Vojvodina, northern Serbia).

Stevan Aleksić produced around 230 canvas paintings, decorated more than 20 churches with 100 icons and a number of wall frescoes, and made 60 sketches and drawings.

[3] Vasa Pomorišac, Aleksić's student and colleague, gave some very bitter criticism of his teacher's work: "Living in a small village, with all the petty values of such community, his spirit could not reach the soaring heights prophesied to him by his professor, Gysis.

He remained far away from that great movement of purification, dying slowly in the backwater dullness, having a painful shade in his soul because he never achieved self-actualization.