The scenes are better now... I'd still make a few changes though:
On the 1st scene, the two ships at the top look like you forgot to remove them... you might as well do it.
I'd also do something about the moon... I'd hide it away behind the planet just a bit more (so that it doesn't stay directly behind the Hornet), and maybe even scale it down... it seems to be either too big or too close to the planet.
On the second scene, I'd rotate the canvas about 120 degrees clockwise.
Ok, there's no "up" in space... but there is "up" in my head, so the image as it is now seems unnatural, uncomfortable to look at - it makes me want to tilt my head... and when I do tilt my head, I see what's probably the best composition among the three scenes you've got so far.
My only nitpick is that I'd make the ship that's dodging blue gunfire in the back maneuver *away* from the asteroid instead of towards it (so, pointing its nose towards what is currently "down", but will hopefully become "left"
)... it looks weird that the pilot is making his evasive maneuver towards the asteroid even though he seems to be very close to it.
On the third shot, I'd either lose the smaller Dralthi (the one right above "loading"... it makes the scene border on "too busy", and it doesn't look like you're accomplishing anything with three Dralthis that you wouldn't accomplish with two) or move it further away from the human ship, then I'd either lose or align the laser shot on the upper-left corner with the other ones that are coming from the right-most Dralthi, and shed some more light on the human ship. It's the first thing that comes to attention in the scene, so it seems really interesting and I'm trying desperately to take a good look at it, but the lighting doesn't let me.
Finally, I agree with Cam that you could try to make that jump hole a bit more interesting, perhaps incorporating some elements from the ones we see
everywhere except Privateer.
I don't really see anything aesthetically wrong with the current one or its placement, but it just might look more familiar for WC fans in general if you take some elements of the jump holes from other games (make it a blue cloud with what seems to be a WC3/4-style jump vortex ready to open inside it or something, rather than just a blue cloud).
Just my 2 cents.