Done in Paint Shop Pro and Animation Shop.
I was told at the Bryce community that the building on the image above is too dark. I played a bit more with Bryce lighting and added a radial light into the scene, though had to move the light quite back. The nearer the light is placed to the object (building) the brighter it shows up. I had to redo the animation from scratch in Paint Shop Pro/Animation Shop. This is the result: