I don't think that screenshot looks that good anyway. In places it is very obviously tiled, there are not many curved edges, there's a problem with depth due to lack of shadows and and no real fringing. I haven't played Stronghold so it might be concentrating on another game aspect or limited by some other factor (e.g. all resources went into AI or something or the landscapes are HUGE).
I reckon World Creator can create graphics matching (or surpassing) the screenshot and would help in creating cliffs/hills. I haven't done it myself yet but there are some examples on their forums.
I reckon World Creator can create graphics matching (or surpassing) the screenshot and would help in creating cliffs/hills. I haven't done it myself yet but there are some examples on their forums.