La Touche painted a variety of subjects, but often depicted scenes from the ongoing La Belle Époque. He was happy to include fireworks displays and liked masked balls as subjects.
His technique was not hard-core Impressionist. It was rather more like the American Impressionist approach of combining accurate drawing and wispy brushstrokes at the times he was in an Impressionist mood. As best I can tell, La Touche painted using oils, though several of his works viewed over the internet seem as though they were done using pastels.
His paintings don't interest me much, but I nevertheless think they are worth showing you.