Hi,
Thank you for your kind comments. The main reason behind lack of Linux support for Enhanced Skyscapes is the fact that I used Visual C++ as my compiler during the development phase. Turns out this was a big mistake, because Visual C++ allows developers to write non-standard code and not notice it. Right now when I try to compile the code using GCC I get several errors, which were absent when I used Visual C++ instead. Other than that, there are no differences between Windows and Linux, at least in theory.
I'm also working on the upcoming update, which will introduce ASXP integration and a bunch of other improvements for rendering artifacts, cloud lighting and cloud shapes, combined with my studies I simply did not have enough time to address these compilation errors. I promise the development will get quite a bit faster in following weeks.
Have a nice day!