Hi mate.
Several things very quickly stick out.
1: The lighting. Its a little all over the place, I think as a result of some bulbs being in shot?
2: The compisition is way off. You need to take a shot from further back and avoid all the clutter.
3: The photos are very very blurry and grainy. A better understanding of the light, and your camera settings will help you develop a skill over time making these problems easy to avoid.
4: The background, you should read about "light boxes", there are several examples on the forum of home made cheap setups, and fantastc results.
Please do not be put off, looking forward to seeing how you develop your skill.