Very cool concept! I like the idea of "painting" to the 2d render texture using light to solve a puzzle. The visual style is very interesting, and I don't think it was lacking in the slightest! The wallpaper and furniture etc. really make the room feel like its from that black-and-white-turn-of-the-century era! My only criticisms would be maybe adding more bounce light to the scene because with the lights off I was just bumbling around in the dark for a while unsure of where I was in the room. Also, I figured out the puzzles and made them in the camera view, but had no understanding of if it was registered or not? Like there was no visual indication of if the game registered that I had found the light image, and I tried pretty hard to make it like pixel perfect to the 3 previews. Let me know if I just missed something or didn't understand the mechanics!