Mike,
I'm hardly an expert on GCA, but I do like the boulders around the green.
If the green is as large as it looks for a short par 3, don't the boulders simply amount to a hazard similar to any other used on a golf course? This green seems big enough that if you're not able to hit it, there should be some sort of penalty, whether that be water, sand, whatever. I like the looks of it and the unique situations that they could bring.
Obviously, if the green was smaller, they'd would seem much more out of place and would probably block sightlines too much. Just my opinion.