1st picture: No idea what that is... Romulan maybe?
2nd: kinda generic, can't see what kinda class it is.
3rd: freighter in an asteroid field?
4th: I really like that winter uniform. :D

1st: Well it looks like some sort of combined labratory/cargo storage. I doubt that it is Romulan.
(...)
4th: I'm not sure I like it. It seems he have klingon shoes on so it might not even be a winter uniform it could be a customized uniform.

1st: I doubt it's romulan, too... but it's the only thing I can think of that comes close to it...

4th: I think those a snow boots.

I'd like to see attention paid to that kind of thing, having variations of our uniforms depending on the climate conditions on the planet.

Got a soft spot for that jacket Kirk wore on Regula in TWOK...

  I'm liking what I'm seeing in these pics, each successive group of shots are showing a progressive amount of detail and lighting. Love the winter scene. And the pic of the miranda looks like its arrived to late to save a ship, finding only debris.

  I may be wrong but if a picture can start a story in your head when you look at it, then it's an excellent pic.
                                         

Those pics are making me drool.  I'm looking forward to putting on that arctic uniform on and checking out that village or installation in the last picture.  I can't wait for the next set of pics to see what they show us next.