After My 5th Viewing, Some Observations..

Caveat:  I apologize if some or all of these are buried within the gargantuan Plots sticky, but it's hard to go through 1000+ posts, which are apparently connected only by dealing with plot theories.  This is the 1st movie forum I've participated in, and I don't wish to disrespect anyone, mods or average joe/jane.  Perhaps someone could bite the bullet and attempt to categorize all of the plot sticky posts? 

Here are some hopefully new observations after my 5th viewing:

1. The vase David freezes and brings onboard the Prometheus is shorter and looks lighter in color than the bigger vases that immediately start leaking black ooze.  So that throws a monkeywrench into theories attempting to explain how the black ooze that changes the worms/Fifield is consistent with the black ooze that infects Halloway.
   
2. After the horseshoe crashes David's head and torso have fallen off of the raised platform.  So it definitely shifted due to the crash/flip.
3. LV-426 and LV-223 could certainly be on different planets in the same star system.  Halloway says, 'that (star) system has 1 planet with a habitable moon'.  But that does not preclude the possibility that the star has a 2nd or 3rd planet with uninhabitable moons.  LV-426 looked anything but habitable in 'Alien'. 
   
4. The pile of dead Engineers that Fifield/Millburn discover sure look like they're on the other side of the Mural/door...

Again I don't mean to spam or sully the forum if I'm repeating observations others pointed out already.  I will spend the next few hours reading all of the Plot theory sticky.