Shaded it...
Look 2x, if you don't see any difference.
That's not really shading.
All you've done is added a darker shade on the left side of each part of the hand. :/
Here's a 10 minute edit I just did to show you what you should work on attempting to do.
Didn't bother changing any of the lines, didn't have time to.
Just whipped this together, not much real attention to detail was put into this.