The document discusses the development of the author's production skills from preliminary tasks through creating an opening sequence. In prelim tasks, the author learned camera techniques like different shot types and editing software. These skills were applied in the opening sequence, which used fast pacing and match cuts to create meaning and mystery. Cinematography, lighting, sound, and mise-en-scene also helped develop characters and their backgrounds. Pre-production involved scheduling, storyboards, and overcoming challenges like difficult shots and locations. Overall, the author's cinematography, lighting, and editing skills improved the most.