First Cut Implementation(Sky):

After reviewing the feedback we got from other people, we decided to put the idea of creative coding aside just for now and see how determinant fish swimming looks. So we picked a video of hologram fish ( not a gold fish, unfortunately) swimming around, and then we processed the video by inverting the colors first from a black background to a white one, and then blended with the original video to around 50% to make the background color grayish. Next we added a color replacement effect on the video and replaced the orange on the fish with black. We scaled up similarity and there we got our fish shadow. Couple more things we could do later are, first, add more fish to the video; second, make the transitions between the videos smoother; third, match music rhythm with speed of fish motion.