It's ok but as others said, the fingers look slightly out of proportion. The thumb and left finger look good though.
I'd also say don't press so hard with your pencil. Your line work is very aggressive.
Rather than altering the pressure for a lighter/darker shade, you should build up layers.
So for a dark shadow, build up lots of light shading until it becomes dark.
This will not only give a more realistic look, but will also prevent light from reflecting off your page.