Of the 3 I definitely like #3 the best. The door opening showing the light is pretty cool. What I don't like on any of them is the actual individual 3 letters. A bit too stylized. The r for example is tiny compared to the w and p.
I do like the way the P is bigger and I also like the "whiteroom post" being held by the wrp in #1 and #2. I also like the faint mirror effect in #2.
Hello It's possible to do something more trash...less clean... But I think it would be interesting to design a logo based on light from the white room ... something powerful to animate. Who can dream ... unusual... and create the mystery.
Something else ... i know (and do) post-production... I think it is not very classy to use a symbol too close to an object of his profession. As a designer whose logo is a pencil. It would be simplistic, I think. must be dreaming.