I will often take renders our 3D artists create and manipulate them in Photoshop to create a final marketing image we can use for various materials needed.
Original F-16 render
Final composition created using Photoshop
The Process
Original render
F-16 render created by artist
F-16 added to background
Found a stock image of a sky background and added the F-16 to the image. I rotated the F-16 till I found the composition I was aiming for.
Color grading
I adjusted the color values of the jet to better match the background, making the jet feel more like it belonged in the image.
Final
Added subtle motion blur and smoke trail to make the image a bit more dramatic.