@Lautaro Rivero, not bad for a new cutter but there are a number of things to keep in mind, particularly in this case to only include 2-3 pixels beneath the chin. For the Sandona cut, the aspect ratio was not maintained and so the face looks a bit stretched. Also, in all 3 of your cuts there was some snow. I'm re-opening all 3 of them so that someone may have another go.

Have a look at the guidelines in this thread so you can see them all at a glance. I also suggest that you post any cuts you do in the comments for now instead of uploading them as completed, so that we can provide some feedback to make sure they are as good as they can be