Search (top right Search box) with Present Perfect Continuous and you will find many related threads. Read several of them first. The previous activity is described by the continuous, and this is the concern here.
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DiamondrgSome ideas from a non-native speaker:
Would it be wrong if it were 'Ann's clothes are covered in paint. He has painted the ceiling'?
or
You are out breath. Have you run? (Instead of 'have you been running')
DiamondrgYou are out of breath. Have you been running?No, because then the question doesn't make sense: you see the person in front of you (as you see he's out of breath), thus you know if he's still running or not.
Is he still running?
Marius HancuDiamondrgNo, because then the question doesn't make sense: you see the person in front of you (as you see he's out of breath), thus you know if he's still running or not.
You are out of breath. Have you been running?
Is he still running?
Marius HancuI realize now the questDiamondrgYou are out of breath. Have you been running?No, because then the question doesn't make sense: you see the person in front of you (as you see he's out of breath), thus you know if he's still running or not.
Is he still running?
DiamondrgMarius HancuDiamondrgYou are out of breath. Have you been running?No, because then the question doesn't make sense: you see the person in front of you (as you see he's out of breath), thus you know if he's still running or not.
Is he still running?
Would it be wrong if it were 'Ann's clothes are covered in paint. [She] has painted the ceiling'?No, not wrong, but the sentences seem less related to one another now, compared to the other choice. In the quoted version above, I imagine Ann's clothes in a heap in a corner, ready to be laundered. Ann herself may be miles away.