Here are some shots of another leg of my Europe, and also the longest: Berlin Brandenburg (EDDB) to Helsinki Vantaa (EFHK) in the FF 757-200RR. At the Gate Left Turnout Landing! This was also my first full 757 flight, and I think I've fallen in love with it! There's a full flight album if you click here, for those interested!
Actually these clouds are shaped by the wind, try a few cumulus layer at I dunno 2,ooo ft in the weather dialog and apply some wind to that alltitude you will see them morph into a similar formation..... SMP clouds are very dynamic