Not exactly the design I started out to make. However, the puzzle piece took so long, I will have to eventually make the other design to justify the time I spent trying to get the top rounded just right.
Bryce 5 handles complex models like this grass slower than Bryce 4, but the addition of the 'depth of field' more than makes up for it. This is one of my more popular images. The grass in the foreground was even used on a Canadian postage stamp.