I think it's quite good
Some things in my opinion need a little work.
Sun light looks litle bright.
Maybe that because render need some more contrast.
It still the same problem in my renders too.
I like big contrast between light and shadow.
Maybe add some deep cloud shadows and then render begin looks like move like.
I'm still working at this same effect in my work.
A lot of renders in bright sun looks flat.
Your is not flat, but try a little work with shadows to make him deep.
Try some experiments with another bitmap sky to take your render to moody style.
Building is quiet good. Grass and bushes too.
Trees are always difficult, maybe some correction in photoshop.
Road to clean. Try to mix with some textures and make some dirt.
Maybe shadows could be little blue....
I know this sounds like a very bad critique, but it's not
I like it
Everything what I said is what I could do with this in my own way.
I'm still learning too, and I'm not perfect

Sometimes different point of view could be very helpful
and could discover some unexpected solutions.
When you are working a long time at one project,
you start to loose your own critique.
You are not able to see some bugs/artifacts.
Especialy when you are working under preasure!
Polite comments are not always make progress.
I have just posted my work for client too.
Fell free for any comment. I'll be grateful.