Alien screenshot warm up

I'm taking part in s film contest, producing 5 screenshots at an hour each. I've not painted anything like that for a long, long time, and so decided I need a few warm ups before I paint my actual 5.
This took me probably the best part of 4 hours, and it's still not perfect, but for a warm up, I'm more than happy... Though I now know where I have to start.. and not to get bogged down in anything remotely resembling detail too early on (that's why this took me so long.)
I LOVED painting this, I learned SO much painting this definitely going to enjoy this contest, and now more determined to stay painting things like this!

Please check out my other screenshot paintings too HERE:
LotR: [link]
Kingdom of Heaven: [link]
The Fifth Element: [link]

About 4 hours PS CS5 + Wacom

Hope you dig it guys. Let me know what you think.

Ed.