cracked

In class I was updating my sketchbook, (mostly sticking in my digital work from the weekend) when I noticed this;

the delicate little lines, like cracks, just caused by the paper folding or being crushed and the white of the paper showing through the cracks! i loved it! so i went ahead and did this to one of my current images

I was really excited by this! I'm pretty sure it will come in handy at some point through this sketchbook!