Clive R. Haynes FRPS
This sounds paradoxical, yet, with the magic of 'Photoshop', it's entirely possible.
Note: If you are arriving at this page as a 'starting point' and you're uncertain about using 'History', it's options and the general operation of the 'History Brush', please click this link to the introductory page: History Brush.
to a previous state; say the 'Opening' state.
Above: Working on the image with a 'creative' filter and making it monochrome.
This will become the nominated (future) 'state'
Below: Beginning to 'paint' over the original (opening) image with the contents of the 'History Brush' set to a the 'future state'.
Applying the 'History Brush 'painting' to a fresh Layer is good practice as it will allow 'edits' and greater flexibility.
next move on to the 'Painterly Ways' of the 'Art History Brush'