Unfortunately, digital sensor noise and film grain are different in effect. In the one colour shot you posted, the chroma noise really detracts from the image. What I believe you mean to get is contrast noise, and that can be used to emulate film grain, to an extent, so long as the image is converted to greyscale, but overall, my opinion is that that's a bad way to go about getting the effect. There are tutorials out there that provide methods to get close to film grain, though by far the best way I've found to emulate film grain is Silver Efex Pro.
Oh, and so it doesn't sound like I'm just railing on the technical details, I do like the lighting in the first. Kinda...can't quite put my finger on it. It is what it is; I like it. Perhaps spooky would be the best word.