Tips for enviroment backdrops

[@matrix]

I need some pointers on rendering a background that will be visible through the windows.. i feel like this is pretty basic and i just missed the memo. Normally i just add the background in photoshop but i would like to keep the look of actual glass window panes and the interior reflections that would be casted on them like the attatched picture.
Also how do i deal with the light thats casted from the background image? I tried a high res backdrop and since it wasnt a hdr image the light it casted looked kind of fake and ruined my scene, not only that but it somehow looked blurry even though i turned bitmap blurring to zero. Any help much appreciated thanks!!

[@matrix]

heres the photo i forgot to attatch :]

[Cheesemsmsm]

Have you read this? It would help.
https://coronarenderer.freshdesk.com/support/solutions/articles/5000515605-how-to-create-background-material-in-corona-