The camera's good.
The lens sucks (note the overall soft image and the chromatic aberration).
The image is over-sharpened (note the "cardboard cut-out" effect on high-contrast edges). That may be because you've got the in-camera sharpness set too high, or possibly it was aggressively sharpened in post-processing, maybe to try to redress the soft image.
I agree with the previous poster too - digital photography is just that, digital. Every image has been manipulated, whether it is by the firmware in the camera (without you necessarily playing a part), or in post-production (where you can control the process yourself).