Hi, if you look at this website: http://www.nrgizejuice.com/ You can see that the slideshow is behind a static image. How can you achieve that with your module?
But to be honest with you it's possible, but not with ImageShow it's too simple for this feature. You have to use slideshow module with layers. I know a few of them: 1) Noo Layer SlideShow 2) Layer Slider 3) Unite Revolution Responsive