With this story, it might have been more helpful to know the initial setup of the first 15-20 pages.
Always introduce characters before they speak if they are present in the scene (i.e. not a voice over or off-camera).
Rather than "ethnicities and eccentricities" I'd say a "diverse bunch of oddballs" or something like that. The alliteration of the two hard-to-pronounce E-words is a real tongue-twister.
"50ft" should be written out ... fifty foot ... same for time ... dollar amounts. Just about the only terms you don't have to spell out are "Mr., "Mrs." and "Ms."
Drop the CONT'D and CUT TO: as they're not normally used in spec scripts.
Page 4: "
Randi joins them; although,
she feels like a social outcast, and
it is written all over her face."
... and this: "
No one’s dressed in their Sunday’s best because it is a casual affair. However, Randi is overdressed for the occasion because this is the first time she’s been to a church in ages." I would take a different approach:
INT. CHURCH - EVENING
Randi steps through the door expensively dressed to the nines.
The sparsely furnished meeting room has a big table in the center where PARISHIONERS of very modest means gather to read from well-worn Bibles. Standing, the PREACHER stops, frozen.
They all turn and gaze at her blankly, mouths agape.
Randi looks around self-consciously.
The Preacher motions for her to sit with the others.
All eyes follow her as she sits.
... and the preacher goes on with this fire and brimstone speech. Notice the separate "shots" called out here. They're barely seconds long, but tell the same scene visually.
Here's a suggestion ... get a group of actors together and give them scripts in advance so they can be familiar with it ... maybe 20-30 pages ... give each a part and to a table reading of a block of the script. Do it twice ... once so you can observe them reading the script as you listen and once so you can close your eyes and just hear the dialogue. Things that aren't right should pop-out at you. I would record it so you can play it back later and make notes.