I liked the trailer, was very nice. I can agree with some posts that it does sort of hang at some points, I realize waiting for the music to transition, but maybe backfill it it a bit before it fades. The points I noticed it were right after the starsector title, then the sequence right before fight... it felt like it hung there with nothing and ruined the tension the dialog was building.
Could argue the ...and... title part sounded awkard, maybe just no and and only Fight to Survive, or maybe the ...and... Fight. Dunno though I am no trailer master
In terms of graphics, I really like the ship explosion white out, it is a key moment when a huge ship pops like that, and I like the white out blips.
One thing I particularly like in starsector are the weapon effects, impact hits, trails, bullet sprites etc, when there is a mass of ships shooting at one another is when the game looks its best imho.
I think the only thing graphically that would jazz up the game short of using 3d models would be to add some elements of the Z axis in the ship animations. They do all tend to look very flat, so giving some more appearance of depth as you are looking down might give the game some more oomph, though I'm not sure how to do that, the illusion of weapons hitting higher or lower on the ships, of some having veritcal design elements. Maybe the ships could bank as they turn, though that is sort of unnecessary in space, eh dunno.
I'm pretty happy with the combat UI.
Outside in the campaign the trading ui could use a bit of theming and/or background pictuers and stuff, but I say that will come as the campain comes in.
I don't play star sector too much but I eagerly come back here every month or so to read up on the latest blog and patch notes and have always loved the direction the game is going, I can't wait to see how the campaign ships up as I feel that will be the element to make starsector into an actual game and is probaby more important to focus art asset creation for that element of the game first imho.