@Fernando Garrido Not a bad first cut, but we prefer to do cuts in 250x250 if the source image is large enough like here (so if the size of the face is larger than ~220 pixels)

All cuts should also include a collar while being cropped 2-3 pixels from the chin, if the neck is too long you can nudge the collar up yourself as explained in the tutorial in this thread: https://sortitoutsi.net/content/360/guide-to-cutting-and-assorted-hints-tips-and-assistance

And we recommend using remove.bg to remove the background from the source image, it basically does all the work for you and delivers very clean results

There is also a video here showing all the cutting steps at once 👍