http://design.tutsplus.com/tutorials/create-detailed-spa-stones-and-flowers-in-adobe-illustrator--cms-22071

Are you seeking inspiration and inner peace? Do you want to relax and enjoy your day? This tutorial is right for you! Feel calm and relaxed as you draw a minimalistic spa scene with basic shapes in Adobe Illustrator, and learn some easy yet spectacular tricks to create a semi-realistic look. Take a deep inhale and let’s start!