So, I made another big render. This time, it's two broadswords against a Ralatha. (Image is attached)
Use some three-point lighting. Black backsides/underside isn't fun to look at and doesn't show off the models properly.
The background needs something. There's a lot of empty space. It makes it boring to look at. A planet, a moon, or a thicker nebula would help.
The missiles could use bright rocket flares and possibly some heavy motion blur so they don't look like they're hanging in space on strings like puppets.
Otherwise, good start.
Well, I tried making a desert planet in the background, but I couldn't find any sandy colors.