@LGalassi, I'm afraid this one isn't as good as the source deserves so I'm re-opening it. If you want to give cutting a go, have a look at the guidelines in this thread. A cut from a source like this can easily be 250x250 and there should be only 2-3 pixels beneath the chin, for instance.

If you want to, since you're still starting out, before uploading a cut as a completed cut, post it in the comments, asking for feedback

Sorry about that, I really am a beginner at cutting, thank you for the tips. I'll have a look at the guide and try to improve!