Looks great! Is it your design? Obviously no worries about solar heat gain in the summer
What sort of render times did these take?
I really like balance of lighting in both shots. Not too dark, not too bright. Does it take a lot of tweaking or does Artlantis get it mostly right first time?
The tree coverage is nicely composed too and blends the building into the scene well.
If I was to be ultra critical, the ground in the night shot looks slightly over-illuminated where you'd expect it to be in shadow. Also there is no shadow under the cars.
I'd be very pleased if it were my first attempt at a night shot