thanks to everyone:
@Fernando Tella: No, they actually reflect everyday scenes here at work.

It cleared pretty fast - hence the single plane emitter- even for the original 3k resolution
@pwrdesign: Thanks, good to know !
@ dutch_designer: Of course it works, I use it everyday. It does sometimes not come naturally though. It still requires devotion, know how, and skill to use its full potential. But then again this goes for all software I believe. Maxwell might lack in areas, however it produces the highest quality images you can get and thats basically why I use it.
-Quality-
regards,
Ben