Thanks! I'm glad you like them and have a use for them. Interesting suggestions. I don't have plans for either, but I should learn a bit about HDRI. The Aethereal Planes images are based on fractal renders, then painted and adjusted in various ways, so separating the actual 'planes' into layered versions would be sort of impossible, unless I approached it in a whole different way. I do agree that they'd be cool in 3D, some of them seem like you could fly right in there.