Today we are going to do a really cool and easy to illustration tutorial in Photoshop.

Let's begin with creating a new document and of course a new layer.



Using any marquee tool just make such selection.



The diagonal line can be not really straight.

Now grab a lasso tool and begin adding these waves. To add hold the shift key, to subtract hold the control key.

I'm doing it on a tablet so maybe for people who work with Mouse it will be a little bit harder to do.



I'm just adding these curves.







I usually save such selections. So save it.







Now create a new document leaving the selection on, and overlay the selection with ordinary color fill.