Question#1: What was the most impressive or surprising thing you saw in their design process and why?
Answer #1: what i saw was the amount of detail they put in to each of there demonic characters, mostly it was the lighting because of some of the shadow they tweet to get the shadows to hit it in just the right angle to make it more life like was to me mind blowing
Question #2: As an artist, what would be something that you could take from this video and add it to your design process and why?
Answer #2: well i took the entire video and download it and some others. so that i can understand it more. the lighting and the texturing effects so i can learn more to get that realistic pop out of my textures.
Question #3: What was something that you didn’t understand or don’t think that would help you in your ways as an artist and why? Make an example.
Answer #3: sometimes i wished that they went more into the programs they used and show some of the tweaks to give people like me more of an understanding, but that’s just wishful thinking and would give away there secrets, but i am tempted to find and email some of the texture lighting crew of diablo 3 and ask them questions and tips
iadtgame225_Texturing and Lighting 
I thought it was pretty awesome the way they used the light, almost more than the shaders and textures sometimes, to really make some of their details pop like you mentioned on the demon characters. As for the programs they use, a magician never reveals his secrets, but they do mention at a couple points using mudbox, and I believe I saw some clips of maya in there, probably for the animation..?
I totally agree with how amazing it is how they used the light i use to always think the texture is what makes somthing look great but seeing what they did was just Faaaaantastic