It's a very simple straightforward task. With minimal changes on the original video, first remove dashed green lines or patches. Second, remove all the dark solid blue lines. Thirdly, from those 6 orange lines, only keep the 3rd orange line without changing any position. After all these edits, downsize that one orange line by 30% of original size in each frame (keeping the bottom position the same/no translation)so that the line must be below the horizontal oscillating line (water surface)