Great job! Glad to see another RB67 user and strangely enough we also had a frosty morning I was out for a couple of days ago and I already developed my film from that day though I haven't uploaded any of the images here. Perhaps I shall...
Which lens did you use? I don't have any extension tubes so I used my widest lens, the 65mm which yields nearly 2/3 lifesize with the 46mm standard bellows.
If I can recall, it was the 127mm C Series lens. Thanks for all your kind comments. It really does feel like I have returned to the type of photography I love and truly enjoy.