enter image description hereHow to fix this grid?

Im making a 2d pixel art game in unity. My animations look like 2 frames are playing at once. This image shows an example. You’ll notice around the head the pixels look pretty weird, the neck has a weird shadow under it, the lips have the same, and the scarf has weird edges and the center looks too dark. In general some pixels are too big and some are too small.
If you need any more info please write a comment and i will try to provide more.