@EmreArsl12 Cutouts should be cropped to just a few pixels below the chin, not with so much of the shoulder/body included. If the source image is too small to do that at 250px, you should make the cutout 180px instead.

Also, there's a little bit of a blue outline around the hair ("snow") - if you use Photoshop (or Photopea.com, a free alternative) you can remove that snow by following this video tutorial: