Not really understanding your problem. Those images should work, though a lot of them are terrible (badly scaled). Start with a large image. Google "wolverine", hit Images, then hit Large (under Size).
You don't need Photoshop to crop. You might as well use a rocket launcher to kill a cockroach. Just get something light like XnView (free, also available as a Portable App) for light work. Figure out the aspect ratio (it's 1.78) and have XnView crop to that. Crop it how you want it, preferably at 540x960 or higher, and then resize down to that. I guess you could use Photoshop, but my brother pirated Photoshop 5 back in the day for fun, and the damn thing took a couple minutes to start up. Not sure if it's still the same. XnView loads instantly and does light image retouching and cropping extremely well.
Then you email it to yourself or get it on your device using your preferred method. For a 540x960 image, you will need to set your launcher's settings to not pan the wallpaper. I'm pretty sure GO Launcher EX will do it. Then when you go to crop, in GO, there's an option to not crop in the upper right corner. That will use the full image. As for the one with two Batmans facing each other (haha, kidding, but try to unsee it now), you wouldn't set that setting, and it would pan as you change homescreens.