Re: composition-how to deal with the wing of the flight
The wing gives a presence to the image. However, I seldom shoot from airliner windows (since I prefer aisle seats) but, when I do shoot from he window, I usually use a bit longer focal length and try to avoid the wing.
However, in post processing images shot from airplane windows, I like to reduce the blue or green (depending on the prevalent color cast) and bump up the contrast and the warmth.
Re: composition-how to deal with the wing of the flight
The first adjustment I do with a photo with a strong colour cast is to adjust levels on the R,G and B channels individually. When you see the histogram on each channel it becomes reasonably obvious the extent to adjust the outer sliding adjusters. Setting the mid point may require going back and forth between the RGB channels to tune. It will depend on what PP software you use as to exactly how you achieve it.
Below I have only used levels adjustments on the right hand image the left hand is unaltered - if I was doing more to the image my next steps would be to add a warming filter and lighten the shadows both of which could be improved by fine tuning the levels adjustments but are more easily done with other post processing tools.
The existence of the wing is a good thing for your safety. If I am taking a lot photographs I try to avoid having them in all of them but it depends on where I am are sitting as to how many show some of the wing or engine. I do not feel you need to crop them out in your photographs.
Re: composition-how to deal with the wing of the flight
Hi Ming.
To answer your question about cropping, I don't mind seeing the airplane. The viewer knows you have to be in an airplane to have taken the shot, so why not show it. I think it adds a bit of realism and interest to the photos.