Around five hours work in Photoshop with a bit of modeling in sketchup for the ships.
This is from the same work as the previous piece but I put a bit more thought into it before starting. Did four thumbnails before I found the right angle then made the ships in Sketchup and got the angle. Then moved into Photoshop and painted in all the shading, colours, textures, lighting, people, etc.
Again, all will be revealed.