You can post images either by using the attachement manager (advaced settings) OR you can use the post image function, for which you'll need a URL of the picture.
I changed the tank to match the concept some more. EDIT: Sorry the images didn't work before, I switched to using Dropbox as an image host and messed up.
you could even go with a video, and 3 or 4 images. Some zoomed in/some zoomed out. I like the image with the church tower and the cycle of clouds above it.
Try printscreening the images, saving them and directly uploading them here. It will give us a better impression of what is going on than images taken from a phone of a monitor.
Ambitious project and goals. Great reference images by the way. I've been thinking of doing a graveyard scene for quite some time, and i'll be borrowing some of those images...