thanks :) but im a bit disappointed with the detail on the hand, don't know how to make the lines sharper, its not very smooth and hurts my eyes

Dig this...makes me kind of giggle too, because it reminds me alot of stuff I did in highschool as far as ideas/composition.
I would encourage you to put a slight more detail in the hand some how, and I don't necessarily mean make it more "realistic"...just more detail...I rather like the contrast in drawing styles between the skeleton hand and apple.
Nice job.