First Smoke Edit

http://img441.imageshack.us/img441/9809/dodargentan0000.jpg

Turn your AA up to the max.
It kinda hurts my eyes. Seriously.

It’s not bad for a first try…but I see you maybe copied and pasted and forgot to change the canvas size, seeing the white at the top. Smoke looks pretty unrealistic.

[editline]12:49AM[/editline]

Here, this might be useful. You can use this to learn how to make good smoke: http://www.facepunch.com/showthread.php?t=283819