If I had to guess.. I would say that this is a genga? Not sure. I don't understand why there is a box around him. I'm also curious to why it is circled "A1" but also "B3" below it.

The box on the first one might be throwing me off but the second one looks more like a douga to me. They are probably both dougas but I really don't know.

This one looks like a genga to me but again I'm not sure. Why does this have three different colours around the box?

Rough genga?

Douga?

Genga

A rough of a genga?

From what I understand roughs are drawn on yellow, light pink, or different coloured paper. Is this always the rough of a genga?
Also what is a "dead genga"? I have seen these types of descriptions on prod art auctions before. Is this just something that was never used in the final animation?
I also bought a Sailor Moon cel with SM and Chibi Moon totally blacked out (it came in an auction I won). Was this used for shading or in a scene where they might have been totally black then reappeared? Like a fade in effect?
It's late right now so I apologize for any errors in my writing. lmao. Thanks!