beautiful colour change, It creates a sense of depth to the picture. As though theres shading and movement. Which you don't have in some of your pics. This also conveys an atmosphere that is both cold/ugly and calm/beautiful
I think I like this the most out of all your recent posts. It has a traditional feel to it. Not enough fractal artists pay homage to the origins of fractals, which is sad. This is like a nice combination of old techniques with new software.