GREAT
I think you are a very talented artist, don`t be so hard on yourself, your description sounded like you didn`t like this, but I did enjoy it. I think the hand was drawn very well and the other person taking it was drawn good as well, and the body you have drawn with it has great details, textures, and good line work. I do think it is a bit blurry from how you are showing this to us, so I would think maybe next time scan this art, do not take a picture of it, as the work is getting a bit lost in your camera`s blurr.
~~THINGS TO IMPROVE ON~~
Scan this next time, and maybe add some color.
~X~