SageAdvice.eu has compiled a bunch of art shots from the upcoming Ravenloft setting book. I've featured a handful below, but click through to the link for the full set of nearly 30 pieces.

It's not a matter of 19th C tech level. That locomotive is suspended above conductor stones.Not necessarily: there also guns in some of these pics. The tech level and cultural style is much more 18th/19th century Europe.
yeah I initially thought missing arm, but rechecked and he is holding his hand up against his body, cant see anything like an elbow which is where the perspective goes askew.It looks to me that his he is reaching his hand out toward the viewer, palm up, so I think it's just weird perspective/foreshortening.
It's probably adam & he has a fairly interesting history/story in past editionsReally enjoying the frankenstein inspired image
where are they?I love that we're getting jiangshi.
This is pretty far afield of the topic, but Tieflings weren’t just chanted to “a full race of uniformly red-skinned, goat-horned, and lizard-tailed Devilpeople.” The change was first introduced in 4e, and it was specific to 4e’s assumed setting, commonly referred to as Nentir Vale. In that setting, there was an ancient empire called Bael Turath, who’s (human) nobility made a pact with Asmodeus to maintain control over their empire. As a result of this pact, all of their descendants were cursed to bear a devilish visage as mark of their forebears’ sin. The Tieflings of the Nentir Vale setting aren’t even a race as the word is typically used in D&D, they’re a cursed bloodline of humans.I much, much, much prefer the way Tieflings were originally portrayed, as unique individual descendants of fiendish ancestors, each with their own unique individual deformity.
Seeing as how the idea behind Tieflings came from the Medieval idea that birth deformities were caused by the sins of the child's parents and/or ancestors, it makes a whole Hell of a lot more sense that they would each have unique deformities, rather than being a full race of uniformly red-skinned, goat-horned, and lizard-tailed Devilpeople. I just cannot stand that massive alteration. It just makes them... flatter and less interesting.