Thanks for the input!
Yeah I had a bit of trouble with the engine being a bit fucky about lighting so I ended up having a lot less lights overall (even though a simple increase on the global diffuse light would have done wonder, oh well)
I didn't really thought about the duration of the light being an issue, it kinda bleeds into the monitor (or your eyes idk) and I picked up basic shapes fine. A "flashbang" effect where the flashed image would linger on the screen sounds like a good fix for it.
Yeah, so originally the roof was made of planks as well and the blue thing on the floor was supposed to be a sweat puddle. There is actually dripping sound that plays with too big of a gaps, there is also a light shining on the ceiling. A dripping sprite animation was in the design as well but time constraints and such