I actually like the low lighting. Its very dark, atmospheric and medieval looking.
If I was to complain, I'd say that cave image looks off. The floor and the beams look pretty good but those walls are just totally wrong. The colouring of the walls isnt terrible. The thing thats off putting is the blocky / straight lined / artificial nature of those walls... and the fact you have a colour transition from an orange floor directly into dark brown wall seperated by a line. The lack of a decent colour transition between floor and wall just seems really blocky.
The floor needs to transition its colouring into the walls, rather then be so blocky.
Its crude but effective, I guess ;p
The image of Ojaveda is bizarre. You have a nice reflective and shiny dirt floor, while the walls dont reflect anything at all. The walls are less reflective then the dirt floor. What the? That just seems un-natural. It should be the other way around. The walls should be highly reflective while the floor shouldnt be. If the intention is for Ojaveda to have that special reflective flooring, that at the very least, the walls should be a lot more reflective then they are at present.
Amdeneir at night looks really good.
The Amdeneir Tavern, again, I'd turn up Reflection. Low Light Source bouncing reflection off stone walls would look very atmospheric. Those walls currently look very dull and uninteresting. The light needs to bounce off the walls more to give it that euphoric look.
I cant imagine how much time has gone into all these. It would have taken forever.