The thing that is currently fascinating me: Life is Strange: BtS runs in Unity, while the original game was Unreal 3. They managed to really keep the style of the games intact between the two, and if anything I think some of the animation and lighting in the more recent game is better. I'm surprised this was possible even through an engine switch and two different small developers.
@selfnoise I agree with this 100%. It'll be interesting to see what they do with Life is Strange 2 and also The Awesome Adventures of Captain Spirit. I've been told AACS is quite gorgeous.