Hi Isabel. Those are very nice images and I think they deserve some PP work. They all have blue color casts I think it is because they are sky shots. You can fix it easily with the color balance function in PS according to your taste (I think you have PS). They all need some sharpening and noise reduction. I think it is because you shot them behind a window on the plane and an easy problem to fix with PP
I would also add a little contrast and may be would do some highlight correction.
You did a very good job by taking those shots. I like them all