Suggestions on making a image fit within the scene in cycles

I need help on making a image with a alpha channel fit in a scene with reflections, I want to be able to make the objects in the scene look like there receiving reflections from the image. also is it possible to have the image have some sort of shadow from the image.
the image is a person in a seated position

:slight_smile: Thx

in the world tab, set an environment texture .
Do a search on hdr in google. Some are free !
For the shadows add a spot or sun to your scene. Hope this helps :wink: