Oryx, neat pictures.
The one showing sight alignment has the front sight with a center hold. Competitive shooters usually use a 6-o'clock hold; the gray bullseye is sitting atop that black post. This virtually eliminates elevation problems as the bullseye will appear fuzzy with the proper aiming eye focus on the front sight.
US Navy Distinguished Marksman Badge 153
Former US Navy & Palma Rifle Team Member
NRA High Power Master & Long Range High Master
NRA Smallbore Prone Master