Jack Glennon reflects on improvements made from his preliminary task to his final product. He learned better techniques for photo editing and masthead creation in Adobe Photoshop. Most importantly, he improved his photography skills by learning principles like the rule of thirds and Guttenberg principle, allowing him to compose shots more professionally. Specifically, he considers lighting, angles, and framing to set mood and capture subjects fully. Looking back, he sees a clear overall enhancement of his work, especially in terms of higher quality photographs.