As was common among historical painters at the time, his paintings contain anachronisms and out of place details. For example, in the 1906 painting of a Gaul returning from the hunt, the clothing is anachronistic and the helmet more a characterisation of the mounted man as a Gaul than a hunting accessory. The long red hair is part of the 19th-century image of the Gaul. His "In Sight of Rome" shows the same liberty: the shield on the left and the helmets are not realistic. The Celtic incursion into Italy made an early and lasting impression on artists. In depicting the Merovingian Franks, 19th-century painters unaware of archaeological evidence costumed queens in Oriental Germanic fashion, as in Luminais' "Merovingian Princess". Luminais' approach focussed more on distancing the image from the present than on evoking a specific era.