Your posted still frame is a view Down Main St = your alleged Babushka Lady having to conquer a Time & Distance Issue in order for her to arrive at her Elm St position ahead of the JFK Limo as captured on the Zapruder Film. I do Not believe your alleged Babushka Lady could have conquered this Time & Distance issue, nor have I ever heard or read of Anyone positioned down Main St having achieved this necessary mad dash on 11/22/63..
Yes, you are right. As Robin Unger wrote, there were some women wearing a coat and headscarf that day. Even if the person on the Paschal film is the same as on the Bronson photo, I think it's impossible that this is the Babushka lady. The place-time aspect I stupidly ignored.
With a little luck, perhaps the reflection idea brings something more to light. However, this idea is very problematic.
There are some difficult factors, such as the direction of the sunbeams, catching the right moment, persons covering the reflection (eg Muchmorefilm, Charles Brehm stands next to Babushkalady), babushkalady's distance to cars, the fact that the reflection the body of a person shrinks back and the image quality itself. In addition, neither the knowledge to make reflections clearly visible or a good image editing program, which complicates the project. The brain also makes faces and people see where there are none (Pareidolia).
Nevertheless, it is in my opinion worth it to continue to try with this idea.
With the material you have so far about babushkalady it is almost impossible to identify her. As you all know, she seems too blurred on the Zapruder video, Nix shows the lady too short, on the muchmorefilm you can only see her from behind, at the bellfilm also almost only from behind and if the side is her face too shady and bronson was too far away and she appeared from behind.
The couch movie (and I think the movie Darnell too) have unfortunately a bit too bad quality for an identification.
The best way to recognize something from her face was on one of the wilma-bond photos (maybe it was also a screenshot of the mark bell movie), in which I inverted the colors. Unfortunately even here, the face from the side and very gaudy can be seen here. Also good photos of Skaggs and Allen (most assume that it is the same babushkalady) help unfortunately hardly in the identification.
Maybe someone will still find the decisive hints.
Until then, I wish all of you a happy and successful new year again.