Invasion Of Hoth color study

I'm pretty sure I've never posted this before... Just found it & thought I would mix it up with some digital. This is a speed painting done of the invasion of hoth. I know that the geometry leaves much to be desired, but I learned that its best to use the rulers & tools provided by photoshop in order to produce more accurate geometric shapes. The only thing I really love about painter is the ability to rotate the canvas at will to create straight lines, unfortunately in photoshop 7 although it can be rotated as such, its a process & is less intuitive than painter..... practice, practice, practice. Done in photoshop 7 with a wacom.