Your actually out of focus on those 2 shots posted. Yes overexposed slightly as well, but the biggest problem being you need to get a better focus.
I started off with a kodak easyshare, not easy to get the target on that little 50mm screen & keep it centred & then try to get it focused. 15-20 mins. sometimes spent just on that part alone.
You'll get there, comes with practice, plenty of practice!