Well... I'm "begining with clouds". I use Photoshop. Do you usually use any blur to do them or you just draw with the airbrush?

This tile was a very good challenge for me. I feel a little bit sad cause of the score (I mean comparing it with the others I've done: some of them are not so "worked" as this is). I had completed tiles all around the "black mother fucking square".

Could someone ask me... am I on a good way? Any comments (destructive or not) allowed.

Thank you all for your help, specially Primal_r :)