Yes, this is a Do335B variant...
Btw, concerning the Ar 234C-3 in a scrap heap - the mottled He111 tail belong to the He111 in the background of this pic of Do335A-05 W.Nr.240105:
http://www.ww2incolor.com/d/300557-2...425_16a4a7a031
So München-Riem can be regarded as ascertained!
Regards
Roland