Hi HN, I made this as a POC. The goal is to make viewing photos on a small screen more immersive. I haven't seen a photo viewer implemented this way, curious to hear what you think!
If your intention is to mimic the sun, the light source outside the window must be much farther away than it is. I also always made its light more yellow and the ambient light blue-ish, but that'd be radiating from the outside.
Noted, thanks! I'm still a noob when it comes to 3D modeling. But I'm looking into it, to create different scenarios that you can choose from. I'm thinking the Louvre (hang your photo in the Mona Lisa's spot) or some other well-known location.