Hi,
Did try here:
http://forum.axishistory.com ?
As he was a regimental commander, there is a chance that some book may bring his picture. At this forum there are a lot people with extensive picture files.
Also, I would try to contact the Bundesarchive. Or, if he is listed as KIA or MIA, you could also try to contact the
www.volksbund.de .
Good luck with your search.
Douglas