Final answer:
The provided references do not explicitly mention a master of ornamental pastry making in the early nineteenth century, and the primary focus seems to revolve around artists from different domains during that period.
Step-by-step explanation:
The master of ornamental pastry making in the early nineteenth century isn't explicitly mentioned through the provided references, which include paintings and descriptions of various artists and historical figures in different contexts. Notably, Marie-Denise Villers, an artist mentioned, was active during the early nineteenth century, displaying her work at salons where her skills could have been admired. However, her work was in the realm of painting rather than pastry. Information related to ornamental pastry making during this era could potentially involve figures like Antonin Carême, renowned as a pioneer of French grande cuisine, but this is not confirmed by the provided information.