photo #2, you were using Auto mode? the settings used for this photo was ISO 2000, f1.8, 1/8, shot at 50mm. can tell that the place was really super dark. change to a brighter place lar.. ><
the blur can be because of the high ISO, with ISO 2000, there will be some visible noise due to the high ISO, and the High ISO noise reduction (if it is switched on) may cause the photo to be a bit soft.
it can be due to camera/handshake too, with 1/8 on a 50mm focal length, quite easy to get blur photo if you do not have firm support.