Blender produced the basic object from cylinders, spheres, and rectangles.

I obtained materials from various sources. Most came from https://freepbr.com/ but also a few are from https://polyhaven.com/. I purchased a few materials and models from https://www.cgtrader.com/ -- a total of less $20 altogether. The models I purchaesed included the radar antennae on top the ship and weapons adorning the hull.

I used Photoshop to create a starfield to hold the ship and the final image.

Lots and lots of Blender tricks are in this picture, along with endless hours learning new stuff. That's good for my 75-year-old mind.