better, but still showing a lot of compression artifacts. do you have the exif data? What pic format and size did you shoot? Raw? JPG Large basic? Compression set to max quality or size?
For the sparrow pic can you turn on focus point to see what point the camera was focusing on? If it is focused on the sparrows eye then it would appear to have some back focusing. This could be corrected by adjusting the lens AF fine tune.