I use an older version of Painter, but have always thought that Photoshop or PSP seemed to have better cloning tools. Other candidates you might look at are Painter 3D (though I've read some negative comment on that score), ZBrush, and I think Maxon came out with an app called BodyPaint. If you do a search on those in this forum, you might get a good idea of what would best suit you.