Cross-platform Gif Maker

I'm in need of a skilled graphic designer to create a Gif maker that is compatible with both Windows and Mac operating systems. The main aim of the gif is to attract user to open and register to a form in my website
I need a gif like the attach file ( i have my box and my voting card that enter to the box)

If you have experience in creating similar things, I'm keen to hear your ideas and see samples of your previous work.