I posted this Raven on AP recently and was told to clean up the sky. On a second look, I could see lots of marks, which I did not notice the first time around. I have since cleaned it up a bit more, but found, as I was cloning, I was just leaving cloned marks behind. So it was a slow process in picking clean areas to use. I could go int paint and just cut out the sky and recolour it, but that would be slow. I only use Paint and Faststone, I had PS, but found I could not use it. Is there a way of highlighting the sky so you can pick up these marks, or am I doing things all wrong

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