Create a Greyscale Depth-Map picture file for CNC machining

I'm looking for a Graphic Designer who can create greyscale depth map pictures. The Depth map (or Height map) should be a greyscale picture that shows the distance of the objects from the camera. See attached for similar examples. I need a 6"x4" high-detail greyscale picture depicting a detailed beautiful (female focused) scene. Something like a nature scene, horses running, kittens playing, and more. The more detail in the pictures the better. I prefer a generic scene was chosen for me, but I can provide a specific picture if necessary. The finished picture must have generic border like a picture frame, leaves, vines, or anything else. The picture must pass a computer simulation to demonstrate that the greyscale can be correctly translated into 3D information. This is done with the free software Fusion 360.