I've finally made some time to try learning some art skills, although they are still pretty limited I'm fairly happy with my first 2 planets...I've gone from trying straight tutorial pieces to experimenting on my own, so that's a good thing. I'm pretty comfortable with planets now, I think I may try my hand at nebulae again...the first edition isn't so great, but eventually I hope to make something decent looking. Thanks to all who have written tutorials and given people like me a basis from which to learn :)