Lighting/shaddow pros, look in,, 2d rendering

hello, i am in the middle of rendering a 2d illustration with adobe illustrator, the image is a cross section of a bridge’s deck,and the deck flaps up to show the layers undernieth (this will be animated)…

i need help gettin the colours correct to the light source etc…

also there are glass panals along the side of the bridge (you can sort of see them) how can i make these look more like glass? im guessin reflections, but where abouts?

also when the deck flaps up there needs to be a cast shaddow under it but i am not sure exactly where it would be and what shape it would be.,. :frowning:

i will post a few pics so you can see what im talking about…

lookin forward to any input …

thanks,

ben