Visual Narratives - Ideas & Drawings

I was struggling with ideas for my book so I just drew some animals that I wanted to include. (Mainly bats)

I thought about comparisons between natural tropical animals and trash left out in the woodlands. I thought I would focus my book around the man made interacting with the natural - natural tropical animals in man made environments and man made objects (trash) within the natural woodlands. 

These drawings showed how I wanted to lay out the book. Having opposing pages with matching compositions - one showing the animal one showing the trash - the natural thing being in colour in both images to highlight it.

It was pretty hard to make the man made environment look man made. The only way I could think of was if I added food dishes etc.

It was suggested that adding some text to the images would clarify the intentions of my images. Perhaps a caption saying what the item is, where it's originally from and where its found. e.g: "Burmese python, originally from _____, found at tropical world", or perhaps some kind of poem. I'm not very good at writing so I'm not sure about that but captions might work.