Looking at this map, it feels as if I've been shrunk! The wooden details, along with the slopes beside the stairs seem far too big. I'd also suggest making your buildings and rooms smaller throughout. Some of the details are good, but I feel because you've made a large map, the details look minimal. Try and have a go at making a smaller map, improving on how you make buildings :) I'd also suggest to have a variety of shapes/textures throughout the buildings, so that the textures don't look too repetative. Good attempt though!
Additional note; try to use less mapmodels! It's a bad habit to use so many :)
Additional note; try to use less mapmodels! It's a bad habit to use so many :)