Thanks to you all guys, means a lot to me! @ QNA: it´s actually not shadow, it´s the MD-11 that shaped this cloud by busting right through it! You can clearly see the third tail engine shaped in the clouds. @ Spad: i hear what you say mate, but i have seen to many pictures of mine with a watermark somewhere in a corner and later found out that it was circulating over the internet without credits at all, presuming the person who stole the picture had made it himself. I agree it´s a bit distracting, but i´m not gonna change it i´m afraid....
@ Kifcio: that photo was made by Bartje who was standing right beside me. At first he was standing near the apron at the center of Amsterdam airport. Untill i called him and told him to come over to my place cause the weather was pretty interesting. 5 minutes after his arrival we made this shot!