Originally Posted by Sergorn 
Personnally I was impressed by the seamless nature of the engine. My first thought was "God Id love an Ultima that looks like this!"
-Sergorn
But in order to provide this seamless world, they had to lower the textures (because of the technical limitation of consoles) and to cover these low textures they overused the bloom effect.
Actually there're two Ultimas that have been made with a seamless engine. DS1 engine remakes of Ultima 5 and 6. Try them, you won't be disappointed.