OK I have a question, the third picture that you posted above does not have a totally transparent background, does it? It has a faint shadow. Perhaps because it's a quick draft?
You see, the reason I want it to be transparent is because I want to combine it with another one of your great wallpapers, to make something like this:
but as you can see, the result is not good because of that semi-transparent background of the joystick image. Any chance the final picture can be totally transparent?