This is really interesting and I like that I can see red and yellow hues - I am embracing all interpretations of 'duotone' here and this is a nice example of one interpretation. (I do wonder about the choice of keeping the 'off-image' white dots top right though.)
I'm not sure what to make of this. Vaguely looks like a human form drawn. Well, anything that makes me stop to think and examine it closer deserves some pointage for that.
I see sepia, black, white, and red. That does not fit the definition of a duotone and I also feel like you are just snapping a photo of someone else's work with very little attempt to make it artistically your own