subject for proposal

I plan to make an underwater themed poster that has the view were you can see underwater and the suface. The main image is of a vampire spraying dead coral with different colour spray paint and giving life. I would choose to do this in landscape because I feel that I can get more action  in the image, the scale of DPI for a landscape image is 920 width and 550 hight. I was influenced by Steve Mcghee with all of his work about the apocolipse and that got me thinking about bringing things back to life instead of ending life. I would like to used a lot of bright viberant colours to show the fact that the dead coral is now alive.