Wow, these screens realy look good, nice textures, concept art looks great … how big is this map? are you using one skin for the terrain map or is it being alpha blended (the transition between the ground details)?
I like the webpage design, its clear and easy to read, nicely done and functional, give that man who designed it a beer! 
The only thing that bothers me (there always has to be something…) is the emptiness of the wallpapers, something is missing on them, there simply isnt much to see on them, nothing that would chatch the eye… (ok, you have a troll on one of them, or is it an orc??), also the composition… the one with a troll is too left side oriented, there is only that troll standing there, the second one is too center-positioned, one light tree on the left and the dark one in the middle… (i am picky, i know …)
otherwise its well designed and looks realy great!
definetly one to keep an eye on
regards
-JozaG