if you're asking how to do a slideshow thingy in your previews then animate it in whatever software you're comfortable with then save as .gif, other than that, its on the scripting/configuration of your patcher.
@OP:
You should pick a much better render of that man (gunslinger) on the top right side of the skin because he looks choppy. Another thing is that you should pick when and where to put those white glows/lights cause it eats away some sections of your design. If it were me though, I would just remove those glows and choose a "not-a-rich-black" black color. I would also slightly tweak the color of your interface into something lighter (a little light than the original color). But that's just me.
Overall I like your creativity so just keep it up