P r e t t y Picture

I'll paint you a pretty picture;
But there's just one twist.
The paintbrush is a knife;
And the paper is my wrist.
I'll draw you something pretty;
It's might be a sin.
The sketch is made of blood;
And the paper's made of skin.
I'll write down a pretty poem;
And this is what I'll do.
I'll fill it full of pain;
And send it straight to you.
I'll mold you a pretty sculpture;
Make it of a heart.
I'll make it out of me;
And hope it falls apart.
I'll send you a pretty package;
But there's a trick you'll see.
I'll fill it full of pieces;
And the pieces are of me.