OUIL406- Greetings From- Lines+Start

After Roughly sketching the composition for my first image, I went through and filled the image with rigid shapes and colours. I wanted the image to rely heavily on shape, and I think I have achieved that. I am quite happy with how the image is looking so far but it definitely still needs some tweaks (and finishing).

This has probably taken much longer than it should have, and I probably won't have all of my 'drafts' finished for Monday. I think now my main focus will be the lines for the composition of the rest of the images, as the rest of the image making is basically colouring in.
The main thing I want to work on now is the lighting, specifically making the lighting look more natural.