|~ first garlic harvest this year ~|
I can see that a few are not so healthy, but the rest look wonderful!
Pull the garlic out, lay them in the sun to dry a bit & just brush off the dirt. You can either tie them up in a braid or cut the green stalks off about 2 or 3 inches above the bulbs & store in a cool, dry, dark area for many months.
Stop watering your garlic about a week or 2 prior to harvest - that helps with flavour. You'll also want to take a look at the bulbs at this stage too & set some aside to plant in October for next year's harvest. Pick the largest & healthiest bulbs from the ones you've grown.
Garlic will evolve & modify itself to the conditions within your own growing space. So the bulbs you bought last year or the year before & continued to propagate yourself, with not be the same if you bought new ones each year. Decide if you enjoy your own flavour & maybe start sharing with your neighbours. Garlic you propagate yourself will also be healthier - as long as you start off with the healthiest bulbs (hard as it is to reserve those for planting!)