I'd like to see more realistic skies, and more features in the Sky Lab (as mentioned, two suns would be cool as well as planets - planets that you could put BEHIND the clouds). The stars could be improved too. Render times! Definately a faster render engine. Bryce5 has such wonderful features such as Soft Shadows, Cast Shadows, Volume World, etc., but the result is renders that can take days (or weeks) depending on the scene. Radiosity, please? Plugin capability. Larger preview window (a minor wish). The trees in the Tree Lab could have better-looking limbs and trunks. The leaves are pretty good. That's about all I can think of at the moment. I too love the interface, although I like the B4 colors better than the B5 white and blue. How about green :-) Doug