You have to clean the image and make it look natural with filling new [url removed, login to view] should look as if the building is newly [url removed, login to view] the walls,bricks,pop work has to be traced rest all will remains as it is(like wood work,gate,bushes,cloths,wire etc.).
All the effects should be same as in original image like the shadows,the curves on the wall,shade etc.I will provide the image.
Make the bid low as it is not a tough work.
NOTE* -Everything should be in separate layers. PSD is must.