Merging photos with renders is a challenge in its own right, having to match the lighting, colours and overall ambience. Each to their own, I say. When I worked in games one of the musicians taught himself how to score his music and write it down. He'd create the music synthetically (big orchestra pieces), but hire a string quartet and record them as well, and mix it in. Made a world of difference to the music, and I see no difference here.
Anyway, rambling over. Looks good.