This low-to-high orbit spacecraft was created in Blender from a 2D concept, see a breakdown of how this 3D model was created on ArtStation: https://www.artstation.com/artwork/5vw9PO

I used decals for the panel and detailing, making use of an excellent Decal Library available from Cyber Kriss on Blender Market: http://tinyurl.com/2s4yskvt