that daz render is very detailed, but the sun shadows are wrong.  they need a blur radius such that the shadow on a wall becomes progressively more blurred the farther it is from the object causing the shadow.  do this with a ray-traced infinite lite co-radial with the sun's position in your hdri-dome.  the render below demonstrates the shadow-edge blurring, which one can confirm by going outside on a sunny day near certain building configurations.