Maz Kanata's character revealed:
In EW there's an article about Maz Kanata, which gives some brief informations of her past.
"Her history is that she was a pirate for a long time” - “She’s lived over a thousand years. She’s had this watering hole for about a century, and it’s like another bar that you’d find in a corner of the Star Wars universe.”

And
Snoke (but without the actual photo sadly)EW.com:
Snoke kept changing, not only through principle photography, but even after. (So any “early concept art” that may be floating around online is probably nowhere near what this dark-hearted character looks like.)Early Snoke concept art - source: (
IndieRevolver.com)

“When we first started working on it, he had some rough notions of how Snoke was gonna look, but it really hadn’t been fully-formed and it almost came out of discussion and performance” - "We shot on set of course, and I was in the scenes I have with other actors, but the beauty of this process is you can go back and reiterate, keep informing and honing beats and moments”
“So J.J., after we shot last year, we’ve had a series of sessions where I’d be in London at The Imaginarium, my studio, while he’s been directing from L.A., and we’ve literally been creating further additions and iterations to the character.
That’s been fascinating. And in the meantime I’ve been able to see the look and design of the character grow and change as the performances change. So it’s been really exciting in that respect.”
"Supreme Leader Snoke is quite an enigmatic character, and strangely vulnerable at the same time as being quite powerful” - "Obviously he has a huge agenda. He has suffered a lot of damage. As I said, there is a strange vulnerability to him, which belies his true agenda, I suppose.”
“The scale of him, for instance, is one reason. He is large. He appears tall. And also just the facial design – you couldn’t have gotten there with prosthetics. It’s too extreme. Without giving too much away at this point, he has a very distinctive, idiosyncratic bone structure and facial structure. You could never have done it [in real life.]”
“No, he’s a new character in this universe. It is very much a newly-introduced character” - “He’s aware of what’s gone on, in the respect that he has been around and is aware of prior events. I think it’d be fair to say that he is aware of the past to a great degree.”