Alter some Images

I want the 3 stages of the jump in Tom_2, Tom_3 and Tom_4 photoshoped to look like they are the one image. So you can see the progression of the jump in one image. Please remove or fade out background (especially the dog). Male and Boxes are main focus, other equipment can be maintained but the rest of the background please remove. Preferably fade to black as it needs to blend in with the black background it will be put onto. Must be done as a horizontal landscape. This will be used as advertisement. An example of the advertisement layout is provided, I want the new picture to replace the sports ball in this layout