[1]ken-zoom-face   GOAL LEVEL: COMPLETE.. First Try, 90 minute
   Time Limit Achieved When I'm free at night, I challenge myself
   to do something you've never done before! * Well, I got told
   about an episode of Wander Over Yonder called "The Box" that had
   an infinite regression and I thought, "man, I ALWAYS wanted to
   figure out how they did that stuff!" So, I timed myself. *"Ken,
   you have 90 minutes. *Use your ridiculous face so they know
   "it's you"". So, I thought about it for a few minutes, came up
   with a quick plan and did it. Perfect? *Nope. *Don't care
   either. *Point is: I know the process now. *It's not hard, once
   you wrap your mind around what it is you're trying to
   accomplish. 18 frames, resizing of layers... oh and the
   background zoom was just a screen capture movie I took of
   manually zooming in on my face, then split into separate GIFs,
   removed duplicates. *I'm sure there was an easier way but ..
   well, I had 90 minutes and only the limited free tools I had at
   hand. I resized first layer to .1x, then .15x, then .2x, then
   .25x, then .3x up to .95x *By the time I got to the 18th frame
   THANKFULLY it worked out perfectly. *I guessed, but I learned to
   trust my intuition. Someone with patience could do something
   spectacular - but I got what I wanted THE LOGIC BEHIND IT. *And
   I figured it out myself :P {and you KNOW it's me because... it's
   my dang face}

References

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   1. http://icopiedyou.com/wp-content/uploads/2015/04/ken-zoom-face.gif