Yeh ... use layers ... blur the back wall on the lower layer perhaps and then 'paint' through the blurred wall using a layer mask to retain the sharpness of the rest.
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Yeh ... use layers ... blur the back wall on the lower layer perhaps and then 'paint' through the blurred wall using a layer mask to retain the sharpness of the rest.
The colors in the 2nd attempt are spot on! nice job!!!