Not a bad cut @asdfghjklqwertyuiopzxcvbnm but the chin is cut too far from the bottom of the canvas. 250x250 is not an enormous canvas so ‘wasting’ 10-15 pixels in height of it on the neck isn't the best idea; it is recommended that you leave no more than 2-3 pixels of empty space above the top of the head and beneath the chin and/or facial hair.

As you know each cut has to have a collar. This video displays a simple technique of how to cut close to the chin and still display a bit of the collar: