Nice shot, however you could’ve got the same shot* with the kit lens.
That’s ISO 250, 1/60th at f 1.7
For most use, on a GF3 you could go to at least ISO 800 no-bother (probably 1600 if it’s just for the web/screen viewing/small prints), also at 20mm on the kit zoom, you could drop to 1/30th and still get a good shot as the IS is excellent.
So, you could shoot at ISO800 on the kit lens and you’d probably not need to drop quite as far as 1/30th. Yes, you’d have greater DoF but in that picture that’d not be an issue.
*yes, not quite the same, it’d be a touch noisier, and greater DoF, but basically it’d be fine IMO.