@Arthur-Campling I like this idea! To me it was clear. But I would make the researcher a little more of a focal point in the composition. (I didn't see her at first.) For instance, maybe she could be a much darker value so that she stands out. Or maybe there could be a clearing in the trees that makes her more visible. Or maybe in the final version she could be wearing red.
I really like is the design of the birdhouses! And I also don't mind the photographs because they tell a little bit more of the story and they give you a chance to draw detail on some of the bird characters. It really is a challenge to draw something close-up and far away at the same time, and I see you wanted to do both!