alright since i dont know squat about bryce im saying this from a point of view of a noob. the rocks, the water and the sky look so un-natural its almost comical. something about how flat the rocks look just bugs the hell out of me, and how the waterfal hits the water, with a perfect 90degree angle just looks too fake for my tastes. also, that sky is just no good my friend, you may want to render one in terragen and put it in here to make it look a little nicer.