When we fly over large areas that are too big for a single picture. We then take several vertical and horizontal pictures and seam them together using a powerful software that creates one seamless image for the client. So yes, it will be one single image, but created using multiple hi-res pictures.
Please send us a message on our contact form and let us know what you have in-mind. We can probably figure out a way to work with you on your project. If not, we are always in contact with other drone companies that we can refer you to.
It's not necessary as long as we have previously agreed on what it is you want us to do. But if you are interested in seeing the process then by all means feel free to observe as we fly.