Before and after reveal

Make a 12-second, 1:1 before and after ad for my cleaning or detailing business. The mess plays with one plain line, the one stroke that makes the change slows to a quarter speed as the clean stripe appears, and then a photo of the before slides aside like a door to show the after under it, side by side with a thin light seam. It ends on my worker or my van with my business name and one action. Footage: I attach a moving clip of the before, about 2 to 3.5 seconds, and a clip of the one stroke that shows the change, such as a steam pass, a roller or a wipe, with about a second after the clean part first shows. I also attach a photo of the before and a clip of the after, both from the same angle and in the same light. Last, I attach a close shot of the worker, my van or my shop. Look: One honest grade on every shot, a touch warmer with a little more saturation and contrast, so the change comes from the work and not from the colour. Every shot creeps in about 5 percent, and 10 percent on the stroke. The accent is a cool steam blue (#7fd4ff), or my own colour. Opening: From 0 to 2.6 seconds, the before plays with a hook line I give you, 3 to 8 words, in the words a customer would use. Set it in Red Hat Display 700, up to 66 pixels on one line, on a dark band (#121417 at 88 percent) at the top or the bottom edge, whichever the subject leaves clear. Hero moment: From 2.6 seconds, the stroke rushes in at about 2 times speed for 0.65 seconds and brakes in 0.25 seconds. It then plays 1.8 seconds at a quarter speed with AI smoothing as the clean stripe appears, and eases out to about real speed. Only this stroke is slowed. Side by side: At 7.7 seconds the before photo covers the whole frame for 0.35 seconds, then slides aside over 0.6 seconds and keeps drifting a little to the cut. The after clip plays under it, so one half of the frame shows the clean result and the other half still shows the before. A 6 pixel white seam with a soft glow in the accent rides the photo's edge. Choose the slide direction so the half of the photo that stays shows only the dirty surface, with no hand or tool in it. Put no labels on the halves. Ending: At 10.3 seconds, cut to the close shot. My business name comes up in Red Hat Display 800, up to 84 pixels, on a dark band. Under it, one action appears as a sentence in the accent, such as where to book. The ad ends at about 12.5 seconds. Sound: Every clip plays its own sound, so the hiss of the steam is the satisfying part. Use a bed with some drive, such as house or a hip hop beat, at 35 percent from a downbeat. It drops to 40 percent of that from the brake to the slide and comes back over 0.3 seconds as the photo moves. The close's own sound sits lower and fades out with the music over the last second.