As with sound, images are subjective. You and I may not see the same color red as red, but we will probably agree that the image on the screen is a digital image or film image, based on contrast, bit depth, and refresh rate. ↗
You really have to soak up the culture of the people to get it right. If you're making a fiction film, it's entertainment, but you want it to be as real as possible. ↗
I'll tell you, I think that the Internet has provided an enormous boost to film criticism by giving people an opportunity to self publish or to find sites that are friendly. ↗