My problem with it, (and the only problem I see)
Is I don't like the finished outside ground.
It blends into the building too much.
I much prefer:
over your finished pictures. See how the building can be distinguished from the ground in the pic I provided? Looking at your current pics...it all sort of...blends..
Just the only thing I can see..other than that...the natural light pic I readded shows the building in a better quality light.. so that may be the problem too.