Interesting photo. The bullet has left the muzzle (because you can see the smoke, which may still be several feet in front of the muzzle). The bullet is not visible, but it could be blocked from view by the guy in the black shirt. At a muzzle velocity of 1000 fps (typical for a 9mm) this might make it 5-10 feet downrange, or 0.005 to 0.010 seconds into flight. The pistol is still level, or what can be seen of it. Recoil is usually not visible except for slide action, which cannot be seen. If there is muzzle flip, it occurs after the slide has fully recoiled (impulse of the slide hitting the stops and rotating the frame). It may be that the recoil is in progress but the casing has not yet been fully extracted from the breech.