Here is a quicky for you
I selected the dark red and colourized it to a pinkish white colour.
Then using the 'select by colour tool ' changed the white to the pinkish. Then selected each window with the rectangle select and copied and pasted as a layer above the pink layer the changed the layer mode to 'grain merge' which still shows the insides of the windows etc
When selecting with the rectangle select make sure you click on 'add a selection to' in the tool options box.
