Can you draw transparently at night? Of course.
Actually, it had never occurred to me to try. But there I was, sitting on our terrace in Barcelona after dark. And the photo below was part of my view. At which point I said, how about drawing this bell tower of the cathedral?
My drawing above was done in situ. I was looking at the bell tower as I drew it. To try and capture the tones of the night, you have to get a bit representational. That is, I depicted the dark night sky, even though this sort of representation is not encouraged in a Transparent Drawing.
So am I saying I cheated? Basically. Still it was fun to draw in the night.