Fernando Gonzalez wrote a great blog post about Photo Retouching in Corel PHOTO-PAINT X7, covering the new liquid tool introduced in version X7 as well as the healing brush introduced in X7.2 for Premium Members and Subscribers. I can only highly recommend that you take a few minutes and read his blog post here: http://corelblogs.wordpress.com/2014/09/16/photo-retouching-in-corel-photo-paint-x7/