Lewis Family photo

Attached is an image of a man and a woman in front of a bus crash. Also attached is a man and a women photo. I would like the faces of the man and woman in the family photo to be photoshopped into the bus crash photo. I would also like the background to be of the city with the space needle. can you do this? The man and women faces can also be made a bit more thin when added to the bus crash photo.