Here are my findings from 'DreamWorlds', it was a wonderful book to read, and has actually helped me a lot in my other modules and own work.
So I tried as James said, and it does make perfect sense and has really helped me a lot. Here are the saves I've got so far. I need to show Bryony soon to make sure she likes this way too.
I tried starting lighter like James said, even though this is the darkest scene I have. I also tried to have less contrast between touching colours in the background like he pointed out.
I've tried to make less of a contrast between the colour and highlights on the trees in the back, I think it has worked.
She had said that she wanted all this scene to be dark, but I put in the highlights on the foreground leaves and branches to try and communicate the depth better, I think it's worked really well.
I just have to show this to her now, the very background hasn't been done, but I'm not sure what she wants beyond the leaves, so I've left it for now. James walked past and I asked him to look at it, and he said 'It's looking much better already!' I'm going to try and revisit the other two, maybe try a quick wash over the more detailed parts, but ultimately start those again.