Daniels 'Where is it!?' line from the trailer

Why would anyone but humans use curtains? In medical settings they are for privacy, hence- not clear. Clear curtains are used in butcheries though but are frigid- she displays no signs nor symptoms of being cold.

I believe it's one of the last scenes, maybe she founds the couple showering dead that's why she starts to feel disgusted and angry, also there are the same curtains

Maybe that seen is David inspecting a dead Shaw that just birthed the protomorph,  and she is asking where the newly born proto is?

GaseousWater

thats the most likely option yes.

if it wasnt for the silhouette of the interior behind her thats definetly more engineer like looking than the shiny and well arranged interior of the human space crafts in covenant/prom.

Think about it, the ship is full of couples, her sick partner Franco's character is in Cryo or ill aboard the ship, what if the xeno/neo/proto somehow killed him aboard the ship. Regardless of how terrifying the creature is that would elicit anger and aggression to make her want to seek it out and kill it. I dont think she is looking at Shaw because she doesn't know Shaw nor has developed that deep of a relationship with, if it is not Franco it is one of the crew of the Covenant that she has grown close to at least and their gruesome demise has triggered her "bad ass mode"

I'm thinking the terror in her expression is because of the horrific, disturbing image that Shaw has become...

For the sake of the movie i hope you are correct "For Close Encounters" as that would best suit the use of Shaw in the movie, such as her being egg morphed or something even more disturbing, but whatever she is looking at is on the Covenant in the shower room. I just feel like it will have something to do with one of her shipmates or her husband Franco

Right on Grinning.....also believe it will very pivotal,  eye opening scene..  

The shower looks like a decontamination shower.

This may explain why the image of Daniels appears to have the juggernaut or Engineer construction in the background.

In the "hanging headset" scene it looks like an Engineer shambling away in the background. Maybe that is the "it" she was asking about.

The reflection looked like the back of Danny McBride's head in the curtains...at first I thought it was the back of Ridley Scott's, but can't see that happening :)

Slab_bay you are correct. The quick glimpse of someone next to Daniels is in fact Danny McBride.

My guess is this scene is after the Protomorph gets on board the main ship, after the shower scene with Smollet and Hernandez, and the disgusted look is because she sees the blood and/or body. The "where is it?" obviously references the Proto, since they at this point already know that something is on board.

I get this wierd gut feeling that she's pissed that the person she's asking knows the answer.

@Hicks/Hudson - I agree.  This is the way I see it as well.  I believe this scene takes place on the Covenant and they are hunting the Protomorph

Maybe Branson gets transformed into something and she knows she has to put an end to it/him.

There is SOMETHING else on the covenant that doesn't belong. Can't imagine how it would be Branson transformed, but can't rule it out, either.

I feel that is it most likely she is looking at the remains of Smollett and Hernandez and pissed because she was close with them and they were part of her crew. There is a chance that the proto somehow killed Branson and she is looking at his remains and its a defining moment for her, instead of wilting and falling apart she turns angry and goes after it. Whatever she is looking at it is truly sad and ghastly and you can almost feel her emotions boiling up with her facial expression.

@Grinning & Dropping Linen - I think she is looking at the aftermath of the shower massacre with McBride...