So he got off to a good start. As might be expected, his early paintings were traditional in style. But around the time he turned 30, he adopted a looser technique that had Impressionist overtones when it came to color. But it might also be said that he was a tiny bit expressionistic in his handling of forms, especially when he was in his forties.
Much of his American work in the 1920s was as just described. But he had received a commission to paint Civil War murals for the Battle Abbey at the Confederate Memorial Institute at Richmond, Virginia (see here). This work was painted traditionally and was done both before and following the Great War which interrupted it, Hoffbauer returning to France to serve in the army. Later on, he worked in film animation.
I'm inclined to place Hoffbauer as a fine-artist whose work came close to illustration. Nothing wrong with that; most of the Masters fall into that category as well.
An early painting, still under the influence of his academic training.
A set of Belle Époche images.
A rather unusual style and subject for Hoffbauer.
Painted during the Great War while he was in the army.
Apologies for the blurred image, but it's the best I could locate.
Other sources have titles mentioning rainy streets in New York, but Herald Square this is. The tall, dark building in the center is the Times Building and building at the right with the arcade is the Herald Building.
The smaller tower at the left was part of the original Madison Square Garden.
The Times Building is on the left (we are looking south). The building with the Turkish and American flags is the Hotel Astor.
An explanation as to how Hoffbauer did the murals is here.