Realistic Render Help

Hi there, i have this particular render which will be integrated to a live action plate, the thing is it still looks fake, hinde cia papasa. not sure kung sa render or sa composite ko aayusin e. mas ok po ba sa Vray render? wala po akong xp sa Vray

Here's the still frame


I really need your help here mga master with regards either sa render or composite po,
rendered with MRmaya. i could send you the file itself just hit me with a pm. salamat po

I don't know what I'm looking at. Any description about the picture sir? Is it a still frame  as in a single captured frame within a video file? Or a Steel frame? I'm not trying to be a grammar nazi, paki clear lang po.  

still frame po ito ng isang image seq. and the object itseft is definitely a steel frame, scaffolding po ito, this would act as the huge screens that you would see sa mga concerts, then peoples heads would be composited sa lower part the frame