Pomerantsev lost the 1893–1894 competition for the Alexander Nevsky Cathedral in Warsaw to Leon Benois; both architects filed Russian Revival proposals, however, Pomerantsev leaned to "red brick" churches of Alexander II period covered with ornamental cliches and crowned with Thon-styled dome; draft by Benois was a refined nod to Vladimir Rus architecture.
In the 1893–1894 competition for the Alexander Nevsky Cathedral in Warsaw, Pomerantsev lost to Leon Benois. Both architects proposed Russian Revival designs, but Pomerantsev favored churches with red brick facades and ornate details, topped with a Thon-style dome, while Benois's design was more refined and drew inspiration from Vladimir Rus architecture.