In this tutorial we'll draw a very realistic cup of coffee. Underneath the cup we'll add some stain using custom brush. This tutorial may look advance but the techniques are simple.
Start by creating circle shape using ellipse tool. Set foreground color to #F2F2F2. Make sure you have selected shape icon from the option bar, then shift+drag to create a circle. From the Layers panel, double click circle shape layer and add layer style Inner Shadow, Outer Glow, and Bevel and Emboss.




Create smaller circle inside the previous circle. Double click its thumbnail layer and in Layer Style dialog box make sure you activate Layer Mask Effects. Also, add layer style Inner Shadow and Outer Glow to the circle.



