Open whatever photo you want to alter
I immediately save the photo as something different so that I don't lose the original image. For example, I will save this first image as Feet01.
Click on "Image" in the tool bar, scroll down to "Adjustments," and click on Hue/Saturation."
Keep the Hue and Lightness at 0. Change the Saturation to -100. Click "Ok."
I would then save this black and white image as "Feet02." Minimize "Feet02" so it will be available, as it will be used in a little bit.
Go back to the first saved image, "Feet01."
Use the "Magic Eraser" tool to delete large portions of the background. Do not delete the portion of the image that you want to keep color. This tool does not delete everything, so once you delete the larger portions, you can then Zoom in as close as you like and use the regular "Eraser" tool to erase the excess color. You can change the brush size in ordre to delete small details!
This is the image after using the "Magic Eraser" tool.
This is the image after using the regular "Eraser" tool. I would save this as "Feet03."
With "Feet03" still open, click on "Select" in the tool bar. Scroll to and click "All." Click "Edit" in the tool bar. Scroll to and click "Copy."
Maximize "Feet02." Click "Layer" in the tool bar. Scroll to "New" and click "Layer." Name the new layer and click "Ok."
Click "Edit" in the tool bar. Scroll to and click "Paste." Your "Feet03" should paste into the new layer. Using the "Move Tool," move your color image to where you would like it, and so that it matches up with the background image. I would save this as "Feet04." Once I saved this, I would go back and delete all the other images I saved, as I would not really need them on my computer. Here is the final image:
Like I said before, this is not your typical way of doing this! It is just how I decided to do it because it works for me! If you have any questions, let me know! The images print out nicely too... I just received ordered prints last week! These steps seem tedious and long. But they really aren't once you get used to it!