I need to make a correction here, Fratini's collage doesn't add up.
The horizontal lines are digital artefacts as the lines are also on the left which is the wall.
Then the radiator is not it, it's the hair and coat of the lady whose foot is visible a few steps below.
Be that as it may, while looking at the position of the strip and the coppers on the landing in the Allen shots I am still of the opinion that Prayer Man was standing one step down, the pix above and the Lovelady position are until a better scan arrives enough that Oswald is still the prime candidate and that Doyle's non existent evidence is a complete waste of time.
*A waste of time indeed @ crafty distractions. Appreciate the clarification @ Frantini's collage, so indicative of your honesty and high standards. That lady, a few steps down, cinches it for me. If her head is already located in Mr. Oswald's mid-section that would mean she would have to be 7'7" tall to reach that point IF he indeed was atop the landing. Again, well done, Mr. K, hopefully your exemplary research team over at RoKC are taking notes, because I cannot wait for you guys to prepare & present a presentation to share with the rest of us moving forward. Good to see you M8. Best...