They are from different parts of the world, when I travelled during daytime. Some early mornings and others just before sunset, which have different luminosity.
I do not know the names of the clouds but do understand that they are called Cumulous. Some show the peace you feel traveling at high altitude, with the only rumbling of the turbines that I could hear. Others have the details of the terrain painted white by the snow, while still at low altitude.
Older airplane windows, if clean or not scratched, were good to take images. With newer airplane models the windows are covered with layers filtering some colors or incorporating colored banding into the pictures.
These color bandings sometimes can be eliminated converting the images into black and white.
Hope soon travel restrictions are lifted so I can continue capturing registering clouds seen from above.