@Joe Moon, not a bad cut, though I suspect the source wasn't great as it's not too sharp. For future cuts, there is no need to leave such large spaces above the head or below the chin. The reason is so the face is the focus of the cut. 2-3 pixels either end are enough

Better/newer source @mons

I actually replaced it with the SI cut for this guy, which I cleaned and which is iirc the same one as the below