Yep... the bluish one looks more realistic than the grey. It was the better choice to submit to your gallery. I have seen plenty of them and can say that you can almost feel that twister. Nice work man. I would be interested in learning how you did this if you are willing to divulge. 8)

There are 10 kinds of people: Those who know binary, and those who don't. 

A whiner is about as useful as a one-legged man at an arse kicking contest.