A lot of people asked me about my process and for a tutorial, so you'll have a chance to see it for yourself with a full workshop in the next issue (83) of ImagineFX magazine
it's a SCIFI ART special issue available now (europe edition)
this is a full tutorial on how to paint "an epic sci-fi scene"
you will also have a big video of the process and some brushes as a bonus!
[link]here is the image that is featured inside:

here is a video of what's in the issue:
[link]you can buy the issue here:
[link]