cool, im trying to submit

I remember this tutorial. Good times indeed. This was my first kind of pixel art as well. A kitchen from that same tutorial.  You've done a good job. What fishmeester said, plus you totally left out the good part about that tutorial - they highlights on the inner edges. Fix it up, upload and stare.

I'm going to try to make "rounded" corner and better use light source : i saw a lot of tutorials on this subject : thank you very much to your help

PixelJoint is a very great website with very cool members !

 This is nice for a first piece.

Now you just have to learn how to work with light sources.
Oh and another thing, your stools look just a bit too sharp, shouldn't they be more round?