Enhance Wedding Photo with Chapel

I have a family wedding photo and a picture of the chapel where the ceremony took place. I would like the chapel to be used as the background for the family photo, but with improved lighting and colors to enhance its appearance. Additionally, I would like minor touch-ups on the family photo, such as smoothing blemishes and improving lighting, while keeping everyone as they are. Experience in photo editing and creating realistic compositing is essential for this project.