The picture(s) look good to me a fairly "realistically" lit while also acknowledging space is, you know, dark unless you're close to a star.
Sometimes realism when it comes to portraying things isn't paramount. In movies or TV, when it's dark, it's never truly that dark unless they're playing with the element of confusion. For a still image that's a work of art, the lights should be focused to do their job, reality be damned. And even with that said, sometimes even in reality, the best composition can be found working within what's there.
For a good example, you could take what Voyager looked like in the Void. It was more lit by the glowing parts, but it still had an ambient light component, regardless of what it would really look like.
If you want to show off a ship design, light it so people can see what it looks like.
Is that the aim though? He didn't make the models, he just made the composition.
However, if that's the case, I will say that the composition is somewhat confusing. To a casual observer, it may be difficult to tell the relation of the two ships to each other, the saucer being cut off on the left seems like a no-no, and it seems odd from a perspective viewpoint to have one nacelle pointed directly at the camera with the other pointing away.
I think the dramatic lighting is cool, but the composition needs to match.