gif test

the below statement only applies if you were trying to make a seamless loop (if not you can skip this)
since this is "gif test" i am guessing that you might be a little new to looping gifs( i am wrong sorry and dont take this the wrong way just trying to be helpful)
the gif look like it stops for a fraction of a second i dont know if this is what you were going for or not but you can stop that by having the last frame of the gif be right before the starting position
basically it looks like the first and last frame in the gif are the same if you want it to be seamless turning try removing the last frame so the first and last are not the same
again trying to be helpful

that said nice design