>>1399604It'd be really hard to make a seamless loop by capturing the screen, because there are two layers sliding past each other, the bottom one is slower than the top (or seems to be), and the top one has an animation of its own.
It'd be best to recreate the effect using the bottom image and the top GIF in some animation software.
Better still would be to recreate the effect from scratch, to get rid of that annoying seam between the tiles.