Alright.
The shading on your teapot needs a bit more definition. Right now as it stands, the pear looks shinier than the teapot, but even so, the shapes are decent but the background blends in too well with the objects.
For example, a bit more contrast in the teapot's spout would be good; notice how the background is darker next to the spout; Perhaps if you used your eraser to take more of the charcoal away you could have gotten a bit more contrast.
Unless the handle of that teapot is black, try to get in as many of the features as you can when you do drawings like these. Since you don't have the luxury of color, all your shading and highlights comes from your charcoal and (if I'm not mistaken) eraser.
Moving onto the tablecloth (Or is that a barrel?) It looks like it's part of the fruit, and even the teapot. I'd say you need a bit more definition there too.
I almost didn't see the ball sitting next to that teapot. That should pop more. Stand out.
Now, all of that being said, this style of drawing isn't easy to do, but once you master a few techniques your skill will go far.
Keep practicing; keep it up!