As of my last update, there is no widely recognized artist by the name of Richard Ebner prominently noted in major art historical records or references. It's possible that Richard Ebner may be an emerging artist, an artist working under a pseudonym, or perhaps a figure with a regional or specialized significance not widely documented in mainstream art historical literature. Without more specific details, it's challenging to provide a detailed biography. The art world encompasses a vast array of artists from different periods, regions, and styles, many of whom might not be extensively documented in widely accessible sources. If Richard Ebner is a contemporary artist, information about his work and contributions to the art world might be found in gallery exhibition catalogs, art magazines, or online platforms showcasing contemporary art. If he is an artist from a previous era, his work might be documented in specialized texts or archival materials related to the specific time period or art movement he was part of. Without further details, providing a comprehensive biography is difficult. If you have more specific information about Richard Ebner, such as his medium, the era in which he worked, or geographical connections, I might be able to offer more targeted insights.