It's pretty good nightblade, but yes it does need some contrast. The main issue with the map is that the road feels really out of place to me. It doesn't help that the map is just 3 different shades of yellow/brown. A good way to fix this is to make the houses a completely different color (like a gray). The best example of this that I can tell you about is the town of Dao in Illusion of Gaia.

Ugh this is the only screenshot I could find unfortunately. And the message box in this game sucks and covers 1/2 the screen. There are youtube videos of the place too if you need a better idea. Xenogears did a similar color scheme with Aveh as well. Hopefully you see what I'm getting at, though. I'm not going to tell you to remake the whole thing, because it's still good and doesn't warrant a full remake.
ps the map isn't necessarily empty, folks. I would keep the houses closer together, but ADDING detail to this isn't necessary. A bit of greenery could help, but nothing too drastic.